Method for supplier selections with linguistic assessment information

With respect to multiple attribute decision making problems with linguistic information, a decision analysis is proposed. A new aggregation operator is proposed: the 2-tuple linguistic weighted harmonic averaging (T-WHA) operator and properties of the operators are analyzed. Then, a method based on the T-WHA operator for multiple attribute decision making is presented. In this approach, alternative appraisal values are calculated by the aggregation of 2-tuple linguistic information. Thus, the ranking of alternative or selection of the most desirable alternative(s) is obtained by the comparison of 2-tuple linguistic information. Finally, a numerical example with supplier selections is used to illustrate the applicability and effectiveness of the proposed method.