摘要: The main purpose of the fuzzy approach individual preferences is to introduce some new behaviors inside standard theory. existing literature generally divided in two schools, according position authors adopt relatively axiom Independence Irrelevant Alternatives (IIA).1 Actually, most works using are based on additive measures satisfaction (Bazu 1984, Butnariu 1987, Orlovsky 1980, Ovchinnikov & Roubens 1992).