Multi‐attribute group decision‐making (MAGDM) for supplier selection using fuzzy linguistic modelling integrated with VIKOR method

Supplier selection is a multi‐attribute decision‐making (MADM) problem with the involvement of conflicting and non‐commensurable criteria, assuming that compromising is acceptable for conflict resolution, the decision‐maker wants a solution that is the closest to the ideal, and the alternatives are evaluated according to all established criteria. In the present reporting, VIKOR method has been adopted in a fuzzy environment to assess multi‐criteria attributes on suppliers' performance and to select the best supplier among a group of alternative suppliers. Individual attribute weights as well as supplier's attribute measures have been expressed in terms of linguistic fuzzy numbers, then a hierarchy MADM model based on fuzzy sets theory and VIKOR method has been applied to deal with such a supplier selection problem. A numerical illustration has been represented to focus application feasibility of the aforesaid methodology.