Supplier selection by Using AHP-TOPSIS and Goal Programming - A case Study in Casumina Rubber Company - Vietnam

Abstract

Suppliers, one of the important factors, directly affect to trade strategy of a company which frequently changed. Evaluating the supplier’s abilities is a required step to select the appropriate supplier who ensure meet the demands of the company flexibly. This paper integrates both MADM and MODM approaches considering quantitative and qualitative techniques to support decision makers select the best solution under criteria and goals suggested by the company in different period. Analytic Hierarchy Process (AHP) and Technique for Order Preference by Similarity to Ideal Solution method (TOPSIS) are used to weigh criteria and obtain total score for each alternative, respectively. In addition, Goal Programming (GP) allows defining priorities of goals and conflicted goals as the company expects to achieve. This study combines three methods solving the supplier section issue for Casumina Rubber Company in Vietnam.