Page 276 - DMGT206_PRODUCTION_AND_OPERATIONS_MANAGEMENT

Unit 13: Production Planning and Control

13.6.2 Graphic and Schematic Analysis Notes

Historically, assembly line layouts have used manual trial-and-error techniques and templates,
drawings, and graphical procedures. For large facilities with many tasks and work centers,
mathematical procedures are extremely complex and there is no guarantee that will ensure
finding the best possible design. The quality of the design very often depends upon the experience
and judgment of the designers and the industrial engineers.

Self Assessment

Fill in the blanks:
13. The layout-planning problem for assembly lines, is to determine the …………….number
of stations and assign tasks to each station, so that a desired level of output is achieved.
14. An ideal assembly line would be one where tasks are assigned to different workstations in
such a way that the total processing times at each workstation is…………….. .

15. Once the …………….output is specified, we can calculate the theoretical minimum number
of stations required.

13.7 Summary

 Production Management is concerned with basically the two important functions of
Production which are Production Planning & Production Control.
 Production Planning is concerned with the planning of various for a given period of time
so that the customer could get the right quality of products at right place, price and in time.
Production.

 Production Control measures actual performance of production units and taking remedial
action called for to see that production actually achieved is not less than the standard set in
advance.

 Aggregate Planning may be defined as ‘Intermediate Planning’ which is normally done
for a period of up to one year’s time.

 Material Planning is a technique of determining the requirements of raw materials,
components, spares etc., required for the manufacturing of the product.
 Plans have a time dimension and to the extent the time-span is restricted, the scope of
functional plans also remains limited with less interaction from further functional plans.
 The short, medium and long-range plans have to dovetail into one another. Shorter range
plans are for all time made within the framework of the longer range plans.
 The layout-planning problem for assembly lines, is to determine the minimum number
of stations (workers) and assign tasks to each station, so that a desired level of output is
achieved.
 An ideal assembly line would be one where tasks are assigned to different workstations in
such a way that the total processing times at each workstation is equal.

13.8 Keywords

Aggregate Planning: It may be defined as ‘Intermediate Planning’ which is normally done for a
period of up to one year’s time.

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