Weighted Intutionistic Fuzzy Additive Multiobjective Linear Model for Vendor Selection Problem

Abstract

Vendor selection is a key success factor for many organizations. The organization aims to find a vendor that has the most compatible specifications with the buyer's requirements. In this paper, we propose a weighted intuitionistic fuzzy additive multiobjective linear model for vendor selection problem. We assign weights to the three objectives namely cost, quality, and on-time delivery. The formulation of the weighted IFO model is done by constructing intutionistic membership and non membership function for the three objective functions and converted to a crisp optimization problem for the solution. A numerical example illustrates the methodology. Comparing the results of fuzzy and intuitionistic fuzzy model we observe that the IFO model gives better results in terms of selection and order allocations to the vendors.