Question

4.

Explain and distinguish between design-dependent parameters (DDP’s) and design-

independent parameters (DIP’s).

Answer 1

Design-dependent parameters (DDP’s):-

1)Design-dependent parameters are attributes and/or characterstics inherent in the design for which predicted or estimated measures are required.

2) These includes the design life, weight, reliability, producability, maintainability, pollutability, etc

Design independent parameters

1) These are the Factors external to the design that must be estimated and/or forecasted for use during design evaluation

2)These includes fuel cost per pound, labor rates, material cost

3)These depend upon the production and operating environment of the system