Fuzzy Decision-Making

Abstract

In this chapter, the subject of the supplier selection problem using a fuzzy decision-making approach, judging by the impact of smart and sustainable operations, was studied. Nine smart and nine sustainable criteria were determined to evaluate five alternative suppliers and consider them as two distinct groups. The two-objective model developed for the solution of the problem tries to maximize the smartness and sustainability values of the supply separately while meeting the problem-specific constraints. The coefficients for the objective functions were obtained by evaluating the smart and sustainable maturity levels of the potential suppliers, and the aim was to purchase more from suitable suppliers according to the relative importance of the objectives. Then the developed multi-objective model was advanced fuzzy linear programming by benefitting from fuzzy decision-making to get the optimum solution to the problem. Afterward, different smart and sustainability weight pairs were determined considering the expectations of the decision-makers, and the results obtained from all scenarios were analyzed by applying the weighted additive method. © 2023 selection and editorial matter, Turan Paksoy and Muhammet Deveci; individual chapters, the contributors.