Industrial Engineering and Production Management
The correct sequence of phases in value engineering is

Creative phase, information phase, investigation phase, evaluation phase
Information phase, creative phase, investigation phase, evaluation phase
Creative phase, investigation phase, evaluation phase, information phase
Investigation phase, information phase, creative phase, evaluation phase

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

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

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