COPRAS-G for Supplier Selection in PT. ASA Using Compromise Weighting of SWARA and MEREC Agus Ristono, Tri Wahyuningsih, Gunawan Madyono Putro
Universitas Pembangunan Nasional Veteran Yogyakarta
Abstract
The aim of this research is to select suppliers using the Complex PRoportional Assessment of Alternatives with Gray Relations (COPRAS-G). The proposed technique for selecting criteria uses Delphi by considering objective and subjective factors. These criteria are then weighted by the compromise of SWARA and MEREC and then used as the basis for selecting suppliers using COPRAS-G. The proposed model has been tested in the Indonesian leather industry for practical use. The suggested model can represent the dynamics of decision-making groups in supplier ranking. By selecting factors in this suggested model, decision-makers can choose more wisely. The accuracy of the criteria set will determine the results of supplier selection. Therefore, a sensitivity test to parameter changes is used to test the model^s validity. The proposed method generates an effective outcome because it is not sensitive to parameter changes.
Keywords: COPRAS, SWARA, MEREC, Supplier Selection, PT. ASA
