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Transcript of Ch03
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Process Design Process Design StrategiesStrategies
Chapter 3Chapter 3
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Effective Process Design
Major Decisions for Major Decisions for Effective Process DesignEffective Process Design
Vertical Integration• In-house• Outsource
Capital Intensity• Low automation• High automation
Customer Involvement• Low involvement• High involvement
Resource Flexibility• Specialized• Enlarged
Process Structure• Customer-contact
position (services)• Product-process
position (manufacturing)
Strategy for Change• Process
Reengineering• Process
Improvement
Figure 3.1Figure 3.1
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Different Dimensions of Customer Different Dimensions of Customer Contact in Service ProcessesContact in Service Processes
Figure 3.2Figure 3.2
Present Physical presence Absent
People What is processed Possessions
Active, visible Contact intensity Passive, out of sight
Personal Personal attention Impersonal
Face to face Method of delivery Regular mail
High ContactHigh Contact DimensionDimension Low ContactLow Contact
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Figure 3.3Figure 3.3
Customer-Contact Model for Customer-Contact Model for ProcessesProcesses
Front office
Hybrid office
Back office
(1)(1) (2)(2) (3)(3)High interaction withHigh interaction with Some interaction withSome interaction with Low interaction withLow interaction withcustomers, highlycustomers, highly customers, standardcustomers, standard customers, standardizedcustomers, standardizedcustomized servicecustomized service services with some optionsservices with some options servicesservices
ProcessProcessCharacteristicsCharacteristics
(1)(1)Jumbled flows,Jumbled flows,complex work withcomplex work withmany exceptionsmany exceptions
(2)(2)Flexible flows withFlexible flows withsome dominantsome dominantpaths, moderate jobpaths, moderate jobcomplexity withcomplexity withsome exceptionssome exceptions
(3)(3)Line flows, routineLine flows, routinework easilywork easilyunderstood byunderstood byemployeesemployees
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Less Customer Contact and CustomizationLess Customer Contact and Customization
Service PackageService Package
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Service Process Structures in Service Process Structures in the Financial Services Industrythe Financial Services Industry
Hybrid OfficeCreation of quarterlyperformance report
• Data obtained electronically
• Report calculated using standardized process
• Report reviewed using standardized diagnostic systems
• Manager provides written analysis and recommendations in response to individual employee performance
• Manager meets with employee to discuss performance
Back OfficeProduction of
monthly client fund balanced report
• Data obtained electronically
• Report run using standardized process
• Results checked for “reasonableness” using well-established policies
• Hard copies and electronic files forwarded to analysts
• Process repeated monthly with little variation
Figure 3.4Figure 3.4
Front OfficeSale of financial
services
• Research customer finances
• Work with customer to understand customer needs
• Make customized presentation to customer addressing specific customer needs
• Involve specialized staff offering variety of services
• Continuing relationship with customer, reaction to changing customer needs
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Process Repositioning at a RestaurantProcess Repositioning at a RestaurantHigher Complexity/DivergenceHigher Complexity/Divergence Current ProcessCurrent Process Lower Complexity/DivergenceLower Complexity/Divergence
Figure 3.5Figure 3.5
Specific table selection Take reservations No reservations
Recite menu, describe entrees and specials
Seat guests, give menus
Self-seating, menu on blackboard
Assortment of hot breads and hors d’oeuvres
Serve water and bread
Eliminate
Maitre d’ takes personally at table
Individually prepared at table
Expand to 20 choices; add flaming dishes, bone fish at table, prepare sauces at table
Expand to 12 choices
Add exotic coffees, liqueurs
Take orders
Salad (4 choices)
Entrée (15 choices)
Dessert (6 choices)
Beverage (6 choices)
Customer fills out form
Already prepared, no choice
Limit to 4 choices
Sundae bar, self-service
Coffee, tea, milk only
Separate course services, sherbet between courses; hand grind pepper
Serve ordersServe salad and entrée together, bill and beverage together
Choice of payment, including house accounts; serve mints
Collect payment Cash only, pay when leaving
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Figure 3.6Figure 3.6
Product-Process Matrix for ProcessesProduct-Process Matrix for Processes
(1)(1) (2)(2) (3)(3) (4)(4) (5)(5)One of a kindOne of a kind Low volume,Low volume, MultipleMultiple Few majorFew major High volumeHigh volumeproducts, madeproducts, made lowlow productsproducts products,products, highhighto customer to customer standardizationstandardization moderate moderate higherhigher standardization,standardization,orderorder volumevolume volumevolume commoditycommodity
productsproducts
ProcessProcessCharacteristicsCharacteristics
(1)(1)Complex and Complex and highly customized highly customized process, unique process, unique sequence of taskssequence of tasks
(2)(2)Jumbled flows, Jumbled flows, complex work with complex work with many exceptionsmany exceptions
(3)(3)Disconnected line Disconnected line flows, moderately flows, moderately complex workcomplex work
(4)(4)Connected line, Connected line, routine workroutine work
(5)(5)Continuous Continuous flows, highly flows, highly repetitive workrepetitive workL
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Less Customization and Higher VolumeLess Customization and Higher Volume
Product DesignProduct Design
Continuousprocess
Projectprocess
Lineprocess
Batchprocess
Jobprocess
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Automobile Assembly Automobile Assembly ProcessProcess
A: Front-end body-to-chassis assembly
H: Hood attachmentF: Fluid fillingS: Start-up testing
A SH F
Midsized
6 cylinderMidsized 6 cylinder
Compact 4 cylinderCompact
4 cylinder
Figure 3.7Figure 3.7
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
The Big PictureThe Big PictureKing Soopers BakeryKing Soopers Bakery
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
The Big PictureThe Big PictureKing Soopers BakeryKing Soopers Bakery7000
loaves/hr
1000 pastries/hr
50 cakes/hr
Bread line
Pastry line
Cake line
High Low
Figure 3.8Figure 3.8
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Vertical IntegrationVertical Integration
KingSoopers
In-houseIn-houseprocessesprocesses
BackwardBackwardintegrationintegration
Raw materials(eggs, flour, sugar)
ForwardForwardintegrationintegration
Customers(grocery stores)
Figure 3.9Figure 3.9
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Costs and VolumeCosts and Volume
FF22
FF11
Figure 3.10Figure 3.10
Process 1:Process 1:General-purposeGeneral-purposeequipment equipment
Process 2:Process 2:Special-purposeSpecial-purposeequipmentequipment
Break-even Break-even quantityquantity
Units per year (Q)Units per year (Q)
To
tal
cost
(d
oll
ars)
To
tal
cost
(d
oll
ars)
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Decision Patterns for Service Decision Patterns for Service ProcessesProcesses
High ContactHigh Contact Customer ContactCustomer Contact Low ContactLow Contact
Figure 3.11Figure 3.11
1. Process Structure
Back office Low complexity, low divergence, and line flows
Front officeHigh complexity, high divergence, and jumbled flows
Varies Varies5. Capital intensity
High Low4. Resource flexibility
Varies Varies3. Vertical integration
High Low2. Customer involvement
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Decision Patterns for Decision Patterns for Manufacturing ProcessesManufacturing Processes
High VolumeHigh Volume Customer ContactCustomer Contact Low VolumeLow Volume
Figure 3.11Figure 3.11
1. Process Structure
Project or job process High complexity, high divergence, and diverse flows
Line or continuous processLow complexity, low divergence, and line flows
High Low5. Capital intensity
Low High4. Resource flexibility
High Low3. Vertical integration
Low High2. Customer involvement
To Accompany Krajewski & Ritzman Operations Management: Strategy and Analysis, Seventh Edition © 2004 Prentice Hall, Inc. All rights reserved.
Custom Molds Plant LayoutCustom Molds Plant Layout
Dock Dock
Lunch room
Cut and trim
Receiving rawmaterials inventory
Dry mix
Assembly
Wet mix
Offices
Packing and shippingfinished goods
inventory
Testing andinspection
Injection machines
Mold fabrication
Figure 3.13Figure 3.13