Sensitivity Analysis

“What if” is the all important question that arises again and again in desig. Indeed, it may be argued that the design process is not complete until all such pertinent questions have been asked, satisfactorily answered, and the answers translated into design changes toward a product as good as it can be made under a set of given restrictions. – Jaroslaw Sobieszczanski-Sobieski (NASA Langley, 1988)