Proceedings of the 9th
International Conference on Design Theory and Methodology
(Sept. 1995), Volume 2, ASME, pages 389-396.
The Method of Imprecision (MoI) is a formal
theory for the manipulation of preliminary design information
that represents preferences among design alternatives
with the mathematics of fuzzy sets.
Using the MoI, different design trade-off strategies can be applied. To
date, two aggregation functions have been developed for the MoI, one
representing a compensating strategy and one a non-compensating
Other research on aggregation functions on fuzzy sets has focused
on two classes of functions that are not suitable for engineering
general restrictions on design-appropriate aggregation functions
are discussed, and a family of functions ranging from the
to the compensating is presented.
An application to preliminary engineering
design is given.