Research on vendor selection based on entropy weight and TOPSIS in supply Chain

Under the background of globalization, the market competition does not mean the competition among the enterprises anymore but the supply chain. The vendor selection is not only the function of supply chain cooperation but also the key factor for improving competitive strengths of supply chain. Firstly, this paper analyzed the worldwide study actuality of the copartner selection for supply chain. Based on some related literature this paper constructed an indicator system for copartner selection in supply chain and adopted the information entropy approach in order to confirm each attribute objective weight, then counted the distance and relative closeness between each vendor with positive ideal solution (PIS) and negative ideal solution (NIS) by using TOPSIS method. Then according to the size of relative closeness the rank of vendor can be confirmed. Finally, this paper certificated the validity of the evaluating method and system via real example analysis.