Abstract
Fuzzy Flexible Interpretive Structural Modeling (FISM/fuzzy) is a fuzzy version of Flexible Interpretive Structural Modeling (FISM) which appears to be very useful as an aid to individuals and groups in making an decision of various problems. This paper presents an introduction to the fundamental concepts and operations of FISM/fuzzy and reports on the result of an exercise conducted with a group of some members. The foundation of FISM/fuzzy is the theory of fuzzy partially filled reachability matrices which is an extention of the theory of partilally filled reachability matrices of FISM. The results of the exercise demonstrates the utility of the methodology for capturing and communicating individual and group perceptions regarding decision makings of complex issues.