Vendor selection decisions are often driven by multiple criteria, involving single vendor or multiple vendors that might not have the best performance on all the criteria. Therefore, the decision maker must compare performance on the various criteria and make judgement for selection. These criteria are either fuzzy or deterministic; they might not represent exactly the real problem. In fuzzy sets there is no means to incorporate lack of knowledge with membership degree. Intuitionistic fuzzy set suitable way to deal this problem combined with membership function, non-membership function and hesitation margin. We have reformulated the model of
Intutionistic fuzzy sets, Vendor selection, Score function, Accuracy function
