Abstract

A technique to perform design calculations on imprecise representations of parameters using the calculus of fuzzy sets has been previously developed [17]. An analogous approach to representing and manipulating uncertainty in choosing among alternatives (imprecision) using probability calculus is presented and compared with the fuzzy calculus technique. We find that the fuzzy calculus is well suited to representing and manipulating the imprecision aspect of uncertainty, and probability is best used to represent stochastic uncertainty.

Volume Subject Area:
1st International Conference on Design Theory and Methodology
Topics:
Engineering design, Probability, Uncertainty, Design
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Copyright © 1989 by The American Society of Mechanical Engineers
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