1Assistant Professor, Dep. of Mechanical Engineering, St. Joseph's College of Engineering, Chennai 600 119, India
2Professor, Head of the Central Workshop Division, Dep. of Mechanical Eng., Anna University, Chennai 600 025, India
3Graduate Research Assistant, Dep. of Mechanical Engineering, University of Texas at Austin
Vendor selection decisions are complicated by the fact that various conflicting multi-objective factors must be considered in the decision making process. The problem of vendor selection becomes still more compli-cated with the inclusion of incremental discount pricing schedule. Such hard combinatorial problems when solved using meta heuristics produce near optimal solutions. This paper proposes a multi-component multiple vendor selection model with vendors offering quantity discounts. This problem is then evaluated using Ge-netic Algorithm with a case study approach. Combinatorial approach is used to group the vendors for selec-tion and Genetic Algorithm to allocate the optimal order quantities for each vendor.