Product selection is always one of the troubles that decision makers are facing with it. Correct
selection requires having suitable method for this important issue. In this article, we concern to
introduce an approach of fuzzy decision making for selection to decision makers. The nature of
decision making is usually complex and without structure. Totally, most of qualitative and
quantitative factors such as quality, price, and flexibility should be concerned for determining a
suitable product. In this study, it is attempted to use recent advances in ranking methods for
product selection. The proposed study uses oral preferences language shown in terms of
triangular and trapezoid fuzzy numbers. Then, a multi criteria hierarchical decision making is
suggested on the basis of fuzzy collection theory for product selection where the proposed
fuzzy VIKOR uses different qualitative and quantitative criteria.
