摘要: The title of this contribution to On Fuzziness has a history and reason that bridges the past, present future. is paper I wrote called “On Relevance Fuzzy Sets in Management Science Methodology” which was published an edited book on Decision Analysis (H. J. Zimmermann, L. A. Zadeh B. R. Gaines (eds.), TIMS Studies Sciences series 1984) [2]. This time when we tried make case for fuzzy sets management science as support theory managers who plan future, solve problems decisions their daily activities.