Pom Presentation_Group 6

7/31/2019 Pom Presentation_Group 6

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Production and

OperationManagement

Paresh Shinde 35

Milind Kumar 34

Sanjay Jhadav 06

Shivraj Dongre 50

Neetu Pandey 40Nidhi Bhate 25


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In case of Batch production why isthe need for scheduling and

sequencing of Jobs on machinesimportant to the production manager?


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Synopsisq What is Batch Production?

q Role of Production Manager in Batch

Production.q What is Scheduling & Sequencing ?

q Scheduling Process in Batch

Production.q Priority Rules in Sequencing.

q Importance of Scheduling &

Sequencing in Batch Production.


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What is Batch Production ?

Batch production is defined by AmericanProduction and Inventory Control Society(APICS)

Batch production is characterized by themanufacture of a limited number of product(but many such, quantities ofdifferent products) produced atregular intervals and stocked in warehouses asfinished goods (or finished parts,)awaiting sales(or withdrawal for assembly).


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Typical examples of Batch production

Process industries -pharmaceuticals,

paints,chemicals; medium Heavy engineering industry -

electric motors, switch

gears, heavy motor vehicles,internal combustion engines

manufacturers of ready-made

garments; manufacturing andassembl sho s such as machine


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Advantages of BatchProduction

Better utilization of plant andmachinery.

Promotes functionalspecialization.

Cost per unit is lower as

compared to job order production. Lower investment in plant and

machinery.

Flexibility to accommodate and


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Limitations of Batch Production

Material handling is complexbecause of irregular and longer

flows.Production planning and control is

complex.

Work in process inventory is highercompared to continuousproduction.

Higher set up costs due to


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Role of Production Manager in BatchProduction

1. Assigning

priority of eachshop order

2. Maintaining

- -


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Continue.

4. Providing actual output datafor capacity control purposes

5. Providing quantity by locationby shop order for WIP inventoryand accounting purposes

6. Providing measurement ofefficiency, utilization, andproductivity of manpower and

machines


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What is Scheduling & Sequencing ?

Scheduling - is the allocation ofresources and the sequencing of tasks toproduce goods and services. Production

scheduling specifies the time each job startsand completes on each machine, as well as anyadditional resources needed.


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Scheduling Process in BatchProduction

Material handling is complex because ofirregular and longer flows.

Production planning and control is complex.

Work in process inventory is higher comparedto continuous production.

Higher set up costs due to frequent changes in

set up.


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Priority Rules in Sequencing.

Scheduling is the allocation of resources andthe sequencing of tasks to produce goods andservices. Production scheduling specifies the

time each job starts and completes on eachmachine, as well as any additional resourcesneeded.

The goal is to answer the following examplequestions:Which machine should be used to run theproduction batch?What job should be run next?Which order will be delivered late?


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Importance of Scheduling &

Sequencing in Batch ProductionScheduling to Control Bottleneck Machines

The n on 1 problem

Scheduling of Parallel Machines

The n on mequal problem

Scheduling of Serial Processes

N on 2 or n on m problem

Scheduling GoalsThru-put and make span control

Lateness control

Minimization of WIP

Minimization of Idle times


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Based on Established Job Priorities and the way arrivalsare treated:

Static Arrival means we only enter jobs intoconsideration at fixed points in time uses job

accumulationDynamic Scheduling means that jobs are

dispatched as they arrive with continuously revisedjob priorities

Types and numbers of workers and machines available

Most scheduling algorithms are machine-limited(assumes labor is always available but machinetime is the problem)

Newer algorithms are studying Labor-limited

systems (due to cells and multi-tasking workers)


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Thank you!

Pom Presentation_Group 6

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