Supply chain mngt

76

Transcript of Supply chain mngt

Page 1: Supply chain mngt

Lecture Organization

Lecturing

Group exercises

QuizzesAssignmentsTutorials

Case discussion

Case study presentations

Grading Policy

Grading Assignment and Quiz 10

Mini-project 10

Test 1 15

Test 2 15

End Exam 50

Mini-project Mini-project in supply chain

Presentation on a relevant topic

on supply chain

Text Books

1 Chopra S and Meindl P Supply Chain Management Strategy

Planning and Operation Pearson Education Inc Singapore Second

Edition 2004

2 Bozarth CC and Handfield R B Introduction to Operations and

Supply Chain Management Pearson Education 2006

3 Simchi-Levi D Kaminsky P Simchi-Levi E and Ravi Shankar

Designing and Managing the supply chain Tata McGraw Hill Education

Private Limited New Delhi 2008

4 Shah J Supply chain management Text and Cases New Delhi

Pearson Education 2009

5 Shapiro JF Modelling the supply chain Second Edition BrooksCole

Cengage Learning 2007

6 Dobler D W and Burt D N Purchasing and Supply Management

Text and Cases Sixth Edition Tata McGraw-Hill Publishing Company

Limited New Delhi 1996

7 Tersine R J Principles of Inventory and Materials Management

Fourth Edition Prentice-Hall Inc New Jersey 1994

1 Christopher M Logistics and Supply Chain Management

Second Edition Financial Times Professional Limited 1998

2 Narasimhan S L McLeavy D W and Billington P J

Production Planning and Inventory Control Second Edition

Prentice Hall of India Private Limited 1995

3 Raghuram G and Rangaraj N Logistics and Supply Chain

Management Cases and Concepts Macmillan India Limited

New Delhi 2000

4 Arnold J R T and Chapman S N Introduction to Materials

Management Fourth Edition Prentice-Hall Inc 1998

5 Burt Dobler and Starling World Class Supply Management

Key to Supply Chain Management Tata McGraw-Hill 7th

Edition 2003

References

Introduction

Why study Supply Chain Management

Operations Management

Supply Chain Management

Important trends

Why Study Operations and Supply Chain Management

Three Basic Truths

I Pervasiveness

II Interdependence

III Profitability and Survival

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 2: Supply chain mngt

Grading Policy

Grading Assignment and Quiz 10

Mini-project 10

Test 1 15

Test 2 15

End Exam 50

Mini-project Mini-project in supply chain

Presentation on a relevant topic

on supply chain

Text Books

1 Chopra S and Meindl P Supply Chain Management Strategy

Planning and Operation Pearson Education Inc Singapore Second

Edition 2004

2 Bozarth CC and Handfield R B Introduction to Operations and

Supply Chain Management Pearson Education 2006

3 Simchi-Levi D Kaminsky P Simchi-Levi E and Ravi Shankar

Designing and Managing the supply chain Tata McGraw Hill Education

Private Limited New Delhi 2008

4 Shah J Supply chain management Text and Cases New Delhi

Pearson Education 2009

5 Shapiro JF Modelling the supply chain Second Edition BrooksCole

Cengage Learning 2007

6 Dobler D W and Burt D N Purchasing and Supply Management

Text and Cases Sixth Edition Tata McGraw-Hill Publishing Company

Limited New Delhi 1996

7 Tersine R J Principles of Inventory and Materials Management

Fourth Edition Prentice-Hall Inc New Jersey 1994

1 Christopher M Logistics and Supply Chain Management

Second Edition Financial Times Professional Limited 1998

2 Narasimhan S L McLeavy D W and Billington P J

Production Planning and Inventory Control Second Edition

Prentice Hall of India Private Limited 1995

3 Raghuram G and Rangaraj N Logistics and Supply Chain

Management Cases and Concepts Macmillan India Limited

New Delhi 2000

4 Arnold J R T and Chapman S N Introduction to Materials

Management Fourth Edition Prentice-Hall Inc 1998

5 Burt Dobler and Starling World Class Supply Management

Key to Supply Chain Management Tata McGraw-Hill 7th

Edition 2003

References

Introduction

Why study Supply Chain Management

Operations Management

Supply Chain Management

Important trends

Why Study Operations and Supply Chain Management

Three Basic Truths

I Pervasiveness

II Interdependence

III Profitability and Survival

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 3: Supply chain mngt

Text Books

1 Chopra S and Meindl P Supply Chain Management Strategy

Planning and Operation Pearson Education Inc Singapore Second

Edition 2004

2 Bozarth CC and Handfield R B Introduction to Operations and

Supply Chain Management Pearson Education 2006

3 Simchi-Levi D Kaminsky P Simchi-Levi E and Ravi Shankar

Designing and Managing the supply chain Tata McGraw Hill Education

Private Limited New Delhi 2008

4 Shah J Supply chain management Text and Cases New Delhi

Pearson Education 2009

5 Shapiro JF Modelling the supply chain Second Edition BrooksCole

Cengage Learning 2007

6 Dobler D W and Burt D N Purchasing and Supply Management

Text and Cases Sixth Edition Tata McGraw-Hill Publishing Company

Limited New Delhi 1996

7 Tersine R J Principles of Inventory and Materials Management

Fourth Edition Prentice-Hall Inc New Jersey 1994

1 Christopher M Logistics and Supply Chain Management

Second Edition Financial Times Professional Limited 1998

2 Narasimhan S L McLeavy D W and Billington P J

Production Planning and Inventory Control Second Edition

Prentice Hall of India Private Limited 1995

3 Raghuram G and Rangaraj N Logistics and Supply Chain

Management Cases and Concepts Macmillan India Limited

New Delhi 2000

4 Arnold J R T and Chapman S N Introduction to Materials

Management Fourth Edition Prentice-Hall Inc 1998

5 Burt Dobler and Starling World Class Supply Management

Key to Supply Chain Management Tata McGraw-Hill 7th

Edition 2003

References

Introduction

Why study Supply Chain Management

Operations Management

Supply Chain Management

Important trends

Why Study Operations and Supply Chain Management

Three Basic Truths

I Pervasiveness

II Interdependence

III Profitability and Survival

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 4: Supply chain mngt

1 Christopher M Logistics and Supply Chain Management

Second Edition Financial Times Professional Limited 1998

2 Narasimhan S L McLeavy D W and Billington P J

Production Planning and Inventory Control Second Edition

Prentice Hall of India Private Limited 1995

3 Raghuram G and Rangaraj N Logistics and Supply Chain

Management Cases and Concepts Macmillan India Limited

New Delhi 2000

4 Arnold J R T and Chapman S N Introduction to Materials

Management Fourth Edition Prentice-Hall Inc 1998

5 Burt Dobler and Starling World Class Supply Management

Key to Supply Chain Management Tata McGraw-Hill 7th

Edition 2003

References

Introduction

Why study Supply Chain Management

Operations Management

Supply Chain Management

Important trends

Why Study Operations and Supply Chain Management

Three Basic Truths

I Pervasiveness

II Interdependence

III Profitability and Survival

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 5: Supply chain mngt

Introduction

Why study Supply Chain Management

Operations Management

Supply Chain Management

Important trends

Why Study Operations and Supply Chain Management

Three Basic Truths

I Pervasiveness

II Interdependence

III Profitability and Survival

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 6: Supply chain mngt

Why Study Operations and Supply Chain Management

Three Basic Truths

I Pervasiveness

II Interdependence

III Profitability and Survival

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 7: Supply chain mngt

Three Basic Truths

I Pervasiveness

II Interdependence

III Profitability and Survival

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 8: Supply chain mngt

1 Pervasiveness

Every organization must make a product or provide a service that someone valueshelliphelliphelliphellip

Manufacturer

Retailer

Design firm

University

Health services

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 9: Supply chain mngt

2 Interdependence

Most organizations function as part of a larger supply chain

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 10: Supply chain mngt

Supply Chains

Networks of manufacturers and service providers that work together to move goods from the raw material stage through to the end user

Linked through physical information and monetary flows

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 11: Supply chain mngt

3 Profitability and Survival

Organizations must carefully manage their operations and supply chains to prosper and indeed survive

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 12: Supply chain mngt

THE PLANNING SCHEDULING AND CONTROL OF THE

ACTIVITIES THAT TRANSFORM INPUTS INTO FINISHED GOODS

AND SERVICES

Operations Management

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 13: Supply chain mngt

Operations Function

The collection of people technology and systems within a company

hellip that has primary responsibility

hellip for providing the organizationrsquos products andor services

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 14: Supply chain mngt

Viewing Operations as a Transformation Process

Transformation

Process

Manufacturing operations

Service operations

Inputs Outputs

Materials

People

Equipment

Intangible needs

Information

Tangible goods

Fulfilled requests

Information

Satisfied Customers

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 15: Supply chain mngt

Manufacturing

Tangible product

Key decisions driven by physical characteristics of the product

How is the product made

How do we store it

How do we move it

Etc

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 16: Supply chain mngt

A round watermelon needs lot of room in a refrigerator and the usually round

fruit often sits awkwardly on refrigerator shelves Smart Japanese Farmers have

forced their watermelons to grow into a square-shape by inserting the melons

into square tempered glass cases while the fruit is still growing on the vine

ldquoCuboid Watermelonrdquo

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 17: Supply chain mngt

Services

Intangible ldquoProductrdquo or Service

Key decisions

How much customer involvement

How much customization

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 18: Supply chain mngt

Cross-Functional Linkages

Operations and

Supply Chain

Finance Budgeting

Analysis

Funds

Marketing What products

What volumes

Costs Quality

Delivery

Human Resources Skills Training

of Employees

Accounting Performance measurement systems

Planning and control

MIS What IT solutions

to make it all work

together

Design Sustainability

Quality

Manufacturability

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 19: Supply chain mngt

ACTIVE MANAGEMENT OF SUPPLY CHAIN ACTIVITIES AND

RELATIONSHIPS TO MAXIMIZE CUSTOMER VALUE AND ACHIEVE A

SUSTAINABLE COMPETITIVE ADVANTAGE

Supply Chain Management

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 20: Supply chain mngt

Module 1Supply Chain Management

The first supply chain was the barter system

Traces of outsourcing was seen when Charles S Rolls became selling agent for cars made by F Henry Royce

The essence of SCM was understood with the first phase characterized as an inventory lsquopushrsquo era that focused primarily on physical distribution of finished goods

Ancient Times

1904

1960-1975

1975-1990

1980 Emergence of SCM

1985- WalMart introduced the concept of Cross Docking

Internet revolutionized the distribution system of the business 1996-

Concept of e-commerce changed the definition of business

1998-

Companies began migrating from an inventory push to a customer pull channel

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 21: Supply chain mngt

Understanding the

Supply Chain

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 22: Supply chain mngt

Traditional View Logistics in the Economy (1990 1996)

Freight Transportation $352 $455 Billion

Inventory Expense $221 $311 Billion

Administrative Expense $27 $31 Billion

Logistics Related Activity 11 105 of GNP

Source Cass Logistics

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 23: Supply chain mngt

Traditional View Logistics in the Manufacturing Firm

Profit 4

Logistics Cost 21

Marketing Cost 27

Manufacturing Cost 48

Profit

Logistics

Cost

Marketing

Cost

Manufacturing

Cost

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 24: Supply chain mngt

Supply Chain Management The Magnitude in the Traditional View

Estimated that the grocery industry could save $30 billion (10 of operating cost) by using effective logistics and supply chain strategies A typical box of cereal spends 104 days from factory to sale

A typical car spends 15 days from factory to dealership

Laura Ashley turns its inventory 10 times a year five times faster than 3 years ago

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 25: Supply chain mngt

Supply Chain Management The True Magnitude

Compaq estimates it lost $5 billion to $1 billion in sales in 1995 because laptops were not available when and where needed

PampG estimates that it saved $65 million retail customers by collaboration resulting in a better match of supply and demand

Boeing Aircraft one of Americarsquos leading capital goods producers was forced to announce write-downs of $26 billion in October 1997 The reason ldquoRaw material shortages internal and supplier parts shortageshelliprdquo (Wall Street Journal Oct 23 1997)

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 26: Supply chain mngt

SOME ESTIMATES FOR INDIA

Logistics Spend hellip IN Rs 240000 crores (approx US $ 50 Billion)

Share of GDP helliphelliphelliphellip 12-13

Major Elements are ( Percentage of Total)

Transportation helliphelliphellip 35

Inventories helliphelliphellip 25

Packaging helliphelliphellip 11

Handling amp Warehousing hellip 9

Others amp Losses helliphelliphellip 14

Supply Chain Management The True Magnitude

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 27: Supply chain mngt

In 25 years NDDB has enabled India to become the largest producer of milk by implementing a logistics and supply chain system that has eliminated several intermediaries thereby leading to a much higher remunerative price (yield) for producers and lower price for consumers

As described in the FORBES magazine the Dabbawalas of Mumbai has achieved an extremely high level of reliability and precision (SIX SIGMA level in QA) in delivering to their customers the products earmarked for them

Supply Chain The Potential

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 28: Supply chain mngt

Supply Chain The Potential

Dell Computer has outperformed the competition in terms of shareholder value growth over the eight years period 1988-1996 by over 3000 using

- Direct business model

- BTO (Build-to-Order) strategy

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 29: Supply chain mngt

In 10 years Wal-Mart transformed itself by changing its logistics system It has the highest sales per square foot inventory turnover and operating profit of any discount retailer

Supply Chain The Potential

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 30: Supply chain mngt

Outline

What is a Supply Chain

Decision Phases in a Supply Chain

Process View of a Supply Chain

The Importance of Supply Chain Flows

Examples of Supply Chains

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 31: Supply chain mngt

Just a significant evolutionhellip

Several hundred years ago Napolean made the remark ldquoAn army marches on its stomachrdquo

Unless the soldiers are fed the army cannot move

Term ldquosupply chain managementrdquo arose in the late 1980s and came into widespread use in 1990s

Prior ndash lsquoLogisticsrsquo and lsquooperations managementrsquo

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 32: Supply chain mngt

Some Definitions

Supply Chain Management encompasses every effort involved in producing and delivering a final product or service from the supplierrsquos supplier to the customerrsquos customer

Supply Chain Management includes managing supply and demand sourcing raw materials and parts manufacturing and assembly warehousing and inventory tracking order entry and order management distribution across all channels and delivery to the customer

The Supply Chain Council USA

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 33: Supply chain mngt

Some More Definitions

Supply Chain Management deals with the management of materials information and financial flows in a network consisting of suppliers manufacturers distributors and customers

Stanford Supply Chain Forum

Logistics involves ldquomanaging the flow of items information cash and ideas through the coordination of supply chain processes and through the strategic addition of place period and pattern values

MIT Center for Transportation and Logistics

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 34: Supply chain mngt

Some More Definitions

Supply Chain Management is primarily concerned with the efficient integration of suppliers factories warehouses and stores so that

merchandise is produced and distributed in the right quantities to the right locations and at the right time and so as to minimize total system cost subject to satisfying service requirements

Simchi-Levi

Call it distribution or logistics or supply chain management By whatever name it is the sinuous gritty and cumbersome process by which

companies move materials parts and products to customers Fortune (1994)

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 35: Supply chain mngt

What is a Supply Chain

All stages involved directly or indirectly in fulfilling a customer request

Includes manufacturers suppliers transporters warehouses retailers and customers

Within each company the supply chain includes all functions involved in fulfilling a customer request (product development marketing operations distribution finance customer service)

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 36: Supply chain mngt

A picture is better than 1000 words How many words would be better than 3 pictures

- A supply chain consists of

- Aims to Match Supply and Demand

profitably for products and services

SUPPLY SIDE DEMAND SIDE

The right

Product

Higher

Profits The right

Time The right

Customer The right

Quantity The right

Store The right

Price

= + + + + +

- Achieves

Supplier Manufacturer Distributor Retailer Customer

Upstream Downstream

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 37: Supply chain mngt

Example of a Supply Chain

Customer wants

detergent

and goes

to Supermarket

Supermarket Third

party DC

PampG or other

manufacturer

Plastic

Producer

Chemical

manufacturer

(eg Oil Company)

Tenneco

Packaging

Paper

Manufacturer Timber

Industry

Chemical

manufacturer

(eg Oil Company)

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 38: Supply chain mngt

What is a Supply Chain

1-40

CUSTOMER is an integral part of any supply chain

Includes movement of products from suppliers to manufacturers to distributors but also includes movement of information funds and products in both directions

Probably more accurate to use the term ldquosupply networkrdquo or ldquosupply webrdquo

All stages may not be present in all supply chains (eg no retailer or distributor for Dell computer)

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 39: Supply chain mngt

41

The Supply Chain

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs

Transportation Costs Inventory Costs Manufacturing Costs

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 40: Supply chain mngt

42

The Supply Chain ndash Another View

Suppliers Manufacturers Warehouses amp Distribution Centers

Customers

Material Costs

Transportation Costs

Transportation Costs Transportation

Costs Inventory Costs Manufacturing Costs

Plan Source Make Deliver Buy

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 41: Supply chain mngt

43

What is Supply Chain Management (SCM)

A set of approaches used to efficiently integrate

Suppliers

Manufacturers

Warehouses

Distribution centers

So that the product is produced and distributed

In the right quantities

To the right locations

And at the right time

System-wide costs are minimized and

Service level requirements are satisfied

Plan Source Make Deliver Buy

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 42: Supply chain mngt

Supply chain flows

Material flow

Information flow

Fund flow

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 43: Supply chain mngt

Alcoa Ball Corp Anheuser-Busch MampM Meijer

First Tier Supplier Distributor Retailer

Transportation companies

Final

customers

Upstream Downstream

Alcoa

Second Tier Supplier

Material Flows

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 44: Supply chain mngt

Wheat Flour

Praline Wafers

Chocolate Confectionery

manufacturer Packing

Creamery

(milk)

Cocoa

beans Sugar

Vegetable

oil

Cocoa

butter Lecithin

Emulsifiers

Salt etc

Printed

materials Aluminium Fiberboard

Multiple

retailers

Wholesalers

Others

(hospital etc)

End

customers

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 45: Supply chain mngt

Dynamics of Material Flow

Supplier Plant Warehouse Logistics Retailer

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 46: Supply chain mngt

Dynamics of Order Flow

Supplier Plant Warehouse Logistics Retailer

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 47: Supply chain mngt

Supply Chain Planning Processes

Demand Planning Material Requirement Planning Demand Forecasting

Supplier Plant Warehouse Logistics Retailer

Production

Plan

Component

Requirement

Order Management

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 48: Supply chain mngt

1-50

Suppliersrsquo

Suppliers Direct

Suppliers Producer Distributor Final

Consumer

Supply Chain

Supply Chain

A sequence of activities organizations involved in producing delivering a good or service

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 49: Supply chain mngt

1-51

Stage of Production Value Added

Value of Product

Farmer produces and harvests wheat 233 233

Wheat transported to mill 124 357

Mill produces flour 233 590

Flour transported to baker 125 715

Baker produces bread 835 1550

Bread transported to grocery store 125 1675

Grocery store displays and sells bread 325 2000

Total Value-Added 2000

A Supply Chain for Bread

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 50: Supply chain mngt

The Objective of a Supply Chain

Maximize overall value created

Supply chain value difference between what the final product is worth to the customer and the effort the supply chain expends in filling the customerrsquos request

Value is correlated to supply chain profitability (difference between revenue generated from the customer and the overall cost across the supply chain)

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 51: Supply chain mngt

The Objective of a Supply Chain

1-53

Example Dell receives 30000- from a customer for a computer (revenue)

Supply chain incurs costs (information storage transportation components assembly etc)

Difference between 30000- and the sum of all of these costs is the supply chain profit

Supply chain profitability is total profit to be shared across all stages of the supply chain

Supply chain success should be measured by total supply chain profitability not profits at an individual stage

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 52: Supply chain mngt

The Objective of a Supply Chain

Sources of supply chain revenue the customer

Sources of supply chain cost flows of information products or funds between stages of the supply chain

Supply chain management is the management of flows between and among supply chain stages to maximize total supply chain profitability

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 53: Supply chain mngt

Module 1Supply Chain Management

Customer could be an internal customer or an external customer

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 54: Supply chain mngt

Process View of a Supply Chain

Cycle view processes in a supply chain are divided into a series of cycles each performed at the interfaces between two successive supply chain stages

Pushpull view processes in a supply chain are divided into two categories depending on whether they are executed in response to a customer order (pull) or in anticipation of a customer order (push)

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 55: Supply chain mngt

Module 1Supply Chain Management

Cycle I

Cycle III

Customer

Distributor

Manufacturer Supplier

Retailer

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 56: Supply chain mngt

Cycle View of Supply Chains

Customer Order Cycle

Replenishment Cycle

Manufacturing Cycle

Procurement Cycle

Customer

Retailer

Distributer

Manufacturer

Supplier

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 57: Supply chain mngt

Cycle View of a Supply Chain

Each cycle occurs at the interface between two successive stages

Customer order cycle (customer-retailer)

Replenishment cycle (retailer-distributor)

Manufacturing cycle (distributor-manufacturer)

Procurement cycle (manufacturer-supplier)

Cycle view clearly defines processes involved and the owners of each process Specifies the roles and responsibilities of each member and the desired outcome of each process

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 58: Supply chain mngt

PushPull View of Supply Chain Processes

Supply chain processes fall into one of two categories depending on the timing of their execution relative to customer demand

Pull execution is initiated in response to a customer order (reactive)

Push execution is initiated in anticipation of customer orders (speculative)

Pushpull boundary separates push processes from pull processes

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 59: Supply chain mngt

PushPull View of Supply Chains

Procurement Manufacturing and Replenishment cycles

Customer Order

Cycle

Customer

Order Arrives

PUSH PROCESSES PULL PROCESSES

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 60: Supply chain mngt

Module 1Supply Chain Management

A push-based SCM takes longer to react to the changing market place

In a push-based supply chain production decisions

are usually based on long-term forecasts

In push-based strategies SCM experience increased transportation costs high inventory levels and high manufacturing costs

In a pull-based supply chain manufacturing is demand driven so that it is coordinated with actual external customer demand rather than a forecast

Push View of SCM

Pull View of SCM

Lead-time reduction occurs as the variabilities are better monitored in pull-based SCM

Pull-based systems are often difficult to implement when lead times are so long that it is impractical to react to demand information

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 61: Supply chain mngt

63

Supply Chain Integration ndash Push Strategies

Classical manufacturing supply chain strategy Manufacturing forecasts are long-range

Orders from retailersrsquo warehouses

Longer response time to react to marketplace changes Unable to meet changing demand patterns Supply chain inventory becomes obsolete as demand for

certain products disappears

Increased variability (Bullwhip effect) leading to Large inventory safety stocks Larger and more variably sized production batches Unacceptable service levels Inventory obsolescence

Inefficient use of production facilities (factories) How is demand determined Peak Average How is transportation capacity determined

Examples Auto industry large appliances others

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 62: Supply chain mngt

64

Supply Chain Integration ndash Pull Strategies

Production and distribution are demand-driven Coordinated with true customer demand

None or little inventory held Only in response to specific orders

Fast information flow mechanisms POS data

Decreased lead times

Decreased retailer inventory

Decreased variability in the supply chain and especially at manufacturers

Decreased manufacturer inventory

More efficient use of resources

More difficult to take advantage of scale opportunities

Examples Dell Amazon

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 63: Supply chain mngt

PushPull View of Supply Chain Processes

Useful in considering strategic decisions relating to supply chain design ndash more global view of how supply chain processes relate to customer orders

The relative proportion of push and pull processes can have an impact on supply chain performance

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 64: Supply chain mngt

66

Supply Chain Integration ndash PushPull Strategies

Hybrid of ldquopushrdquo and ldquopullrdquo strategies to overcome disadvantages of each

Early stages of product assembly are done in a ldquopushrdquo manner

Partial assembly of product based on aggregate demand forecasts (which are more accurate than individual product demand forecasts)

Uncertainty is reduced so safety stock inventory is lower

Final product assembly is done based on customer demand for specific product configurations

Supply chain timeline determines ldquopush-pull boundaryrdquo

Supply Chain Timeline

Raw Materials

End Consumer

Push Strategy Pull Strategy

Push-

Pull

Boundary ldquoGenericrdquo Product ldquoCustomizedrdquo Product

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 65: Supply chain mngt

67

Choosing Between PushPull Strategies

Pull Push

Pull

Push

Economies of Scale Low High

Low

High D

em

and U

nce

rtain

ty

Industries where bull Customization is High bull Demand is uncertain bull Scale economies are Low

Computer equipment

Industries where bull Standard processes are the norm bull Demand is stable bull Scale economies are High

Grocery Beverages

Industries where bull Uncertainty is low bull Low economies of scale bull Push-pull supply chain

Books CDrsquos

Industries where bull Demand is uncertain bull Scale economies are High bull Low economies of scale

Furniture

Where do the following industries fit in this model

Automobile

Aircraft

Fashion

Petroleum refining

Pharmaceuticals

Biotechnology

Medical Devices

Source Simchi-Levi

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 66: Supply chain mngt

68

Characteristics of Push Pull and PushPull Strategies

PUSH PULL

Objective Minimize Cost Maximize Service Level

Complexity High Low

Focus Resource Allocation Responsiveness

Lead Time Long Short

Processes Supply Chain Planning Order Fulfillment

Source Simchi-Levi

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 67: Supply chain mngt

Supply Chain Macro Processes in a Firm

Supply chain processes discussed in the two views can be classified into

Customer Relationship Management (CRM)- interface between the firm and its customers

Internal Supply Chain Management (ISCM) ndash internal to the firm

Supplier Relationship Management (SRM) - interface between the firm and its suppliers

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 68: Supply chain mngt

Integration among the above three macro processes is critical for effective and successful supply chain management

SRM ISCM

CRM

Source

Negotiate

Buy

Design

collaboration

Supply

collaboration

Strategic planning

Demand planning

Supply planning

Fulfillment

Field service

Market

Price

Sell

Call center

Order

management

Supplier Firm Customer

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 69: Supply chain mngt

Decision Phases of a Supply Chain

Supply chain strategy or design

Supply chain planning

Supply chain operation

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 70: Supply chain mngt

Supply Chain Decisions

OPERATIONAL

TACTICAL

STRATEGIC

Procurement Distribution Manufacturing Logistics

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 71: Supply chain mngt

Supply Chain Strategy or Design

Decisions about the structure of the supply chain and what processes each stage will perform

Strategic supply chain decisions

Locations and capacities of facilities

Products to be made or stored at various locations

Modes of transportation

Information systems

Supply chain design must support strategic objectives

Supply chain design decisions are long-term and expensive to reverse ndash must take into account market uncertainty

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 72: Supply chain mngt

Supply Chain Planning

Planning decisions

Which markets will be supplied from which locations

Planned buildup of inventories

Subcontracting backup locations

Inventory policies

Timing and size of market promotions

Must consider in planning decisions demand uncertainty exchange rates competition over the time horizon

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 73: Supply chain mngt

Supply Chain Operation

Time horizon is weekly or daily Decisions regarding individual customer orders Supply chain configuration is fixed and operating

policies are determined Goal is to implement the operating policies as

effectively as possible Allocate orders to inventory or production set

order due dates generate pick lists at a warehouse allocate an order to a particular shipment set delivery schedules place replenishment orders

Much less uncertainty (short time horizon)

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics

Page 74: Supply chain mngt

Supply Chain Decisions

bull Supplier Selection

bullAllocation of

Suppliers to the

Plants

bullLocation Number

Capacity of Plants

bullWhat Products to

Produce

bullWhich Plants to

Produce them

bullLocation Number Size

of Warehouses

bull Mode of Shipment

bull Port Selection

bull Procurement Policy

bullWarehouse Allocation

bull Inventory Decisions

bull Manufacturing Policy

bull Customer Allocation

bull Distribution Policy

bull Vehicle Routing

bull Fleet Size

bull Production Schedule

bullScheduling on

Machines

bull Workload Balancing

bull Finished Goods

Inventory bull Vehicle Routing

Procurement Distribution Manufacturing Logistics