Modeling and development of a decision support system for supplier selection in the process industry


1 Department of Mechanical Engineering, P.S.R. Engineering College, Sivakasi, 626140, Tamil Nadu, India

2 Department of Mechanical Engineering, Kalasalingam University, Krishnankoil, 626126, Tamil Nadu, India


This paper presents the development of a model based decision support system with a case study on solving the
supplier selection problem in a chemical processing industry. For the evaluation and selection of supplier, the
analytical hierarchy process (AHP) and grey relational analysis (GRA) were used. The intention of the study is to
propose an appropriate platform for process industries in selecting suppliers, which was tested with an
electroplating industry during the course of development. The sensitivity analysis was performed in order to
improve the robustness of the results with regard to the relative importance of the evaluation criteria and the
parameters of the evaluation process. Finally, a practical implementation study was carried out to reveal the
procedure of the proposed system and identify the suitable supplier with detailed discussions about the benefits
and limitations.