Industrial Engineering and Production Management
Time study is

Time taken by workers to do a job
The appraisal, in terms of time, of the value of work involving human effort
Method of fixing time for workers
Machine setting time

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Industrial Engineering and Production Management
In order that linear programming techniques provide valid results

Only one factor should change at a time, others remaining constant
Either (A) or (B)
Relations between factors must be linear (positive)
Relations between factors must be linear (negative)

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