A research on supplier selection method for CALS

Based on the characteristics of supplier selection for CALS(Continuous Acquisition and Life-cycle Support), that companies with CALS have many suppliers and suppliers are always strategic suppliers, supplier selection process is divided into two phases: pre-selection and making decision. At supplier pre-selection stage, polychromatic sets theory from Russia is introduced as the solution scheme. According to the properties of suppliers themselves and pre-selection evaluating indicators, pre-selection contour Boolean matrix is created automatically. Based on it, supplier pre-selection model is set up. At decision-making stage, popular fuzzy analytic hierarchy process is adopted to set up supplier selection model. On the basis of evaluating indicators of the decision-making stage, the best supplier can be chosen quickly. In the end, an application example of motor company is given to testify the feasibility and effectiveness of the proposed method.