Fuzziness of TOC

Abstract

This article presents the fuzziness of TOC(Theory of Constraints) and related basic researches. Mainly, we treated with TOC Project scheduling (TOCPS) Problem with fuzzy processing time and due-date. First, the ambiguous processing time and due-date are formulated by fuzzy possibility function and membership function, respectively. Next, we calculate agreement index between Manager's completion time of task and Decision Maker's due-date for finding common opinion. The method of transforming agreement index to actual processing time is proposed, and validity of the method is discussed.