A NEW FUZZY TOPSIS METHOD FOR MATERIAL HANDLING SYSTEM SELECTION PROBLEMS

摘要

This paper presents a fuzzy multiple criteria group decision making (FM MCGDM) problem with the Technique for O Order Performance by S Similarity to Ideal Solution (TOPSIS S) based on the concept of positive and negative ideal solution. Triangular fuzzy numbers (TFN) among decision making process is used to evaluate the weighted different alternatives versus various criteria and a fuzzy group weight is made by different experts. Various decision makers' attitudes categorized into optimistic and pessimistic judgments are introduced. Eventually, a comparison between traditional fuzzy TOPSIS method and our new and simple fuzzy TOPSIS method and defuzzified TFN N is also done. Different ranking for preferred material handling devices w with our approach shows the efficiency of this one.