Application of Fuzzy Goal Programming & F-PROMETHEE Approaches in Evaluating and Selecting the Best Suppliers in Supply Chain

The goal of this paper is offering a decision making style for selection of suppliers of supply chain system. During the recent years, selection of suitable suppliers of supply chain was a key subject. Since correct selection of suppliers can decrease costs and increase credit and profit of companies, thus those companies deal with suppliers and contractors must notice this subject and become familiar with suppliers selection techniques. To select suitable suppliers, many qualitative and quantitative criteria such as price, quality, flexibility, delivery performance,… must be considered. In this paper, at first we determine criteria indicated by experts for selection of suitable suppliers. Then we obtain weight of each criterion by AHP method, Goal Programming Approach, and related software such as LINDO. Then we rank the suppliers by PROMETHEE method. All calculations are done by fuzzy logic. This research was implemented in HEPCO Co. at Arak industrial city in order to evaluate and select the best suppliers.