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

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

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Industrial Engineering and Production Management
Value engineering aims at finding out the

Depreciation value of a product
Resale value of a product
Break-even point when machine requires change
Major function of the item and accomplishing the same at least cost without change in quality

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