A multicriteria supplier selection framework with interval - valued intuitionistic fuzzy assessment

This paper proposes a multicriteria decision making (MCDM) framework for supplier selection under the interval - valued intuitionistic fuzzy environment. In this MCDM problem, the decision-maker (DM) selects the best supplier by ranking alternative suppliers. This ranking is based on the suppliers´ performance on and assigned weights to the criteria. The proposed model uses intuitionistic fuzzy assessment as input data and transforms them to an aggregated index, there by ranking the suppliers. A numerical example is developed to illustrate the method.