Fuzzy Superiority and Inferiority Ranking Method in Multi Criteria Decision Making: Supplier Selection Problem

Multi-criteria decision making (MCDM) is an approach to sort alternatives with respect to criteria. A challenging circumstance is to consider the effectiveness of all criteria in decision making. The case is more complicated when uncertain condition or imprecise data are included. We aim to develop a new method of Superiority and inferiority ranking (SIR) to evaluate alternatives in MCDM. Then, SIR method is adapted with uncertain data. To verify the Fuzzy SIR method a supplier selection problem in which the fuzzy triangle numbers indicate uncertainty of data is worked out. The numerical results show the feasibility of the fuzzy SIR method to find out the best alternative in a decision making problem

Keywords:

Multi Criteria Decision Making (MCDM) , SIR , Fuzzy number