A Fuzzy Logic Method for Solving Three-tier FMCDM Problems

The purpose of this paper is to propose a ranking method for solving fuzzy multiple criteria decision making (FMCDM) problems. The representation of multiplication operation on fuzzy numbers is useful for the decision makers to rank all alternatives and choose the best one under the fuzzy multiple criteria decision making environment. The representation of multiplication operation on three fuzzy numbers is proposed in this paper. Finally, this representation proposed in this paper is applied to solve the three-tier fuzzy multiple criteria decision making problem.