Title A GREY COMBINED COMPROMISE SOLUTION (COCOSO-G) METHOD FOR SUPPLIER SELECTION IN CONSTRUCTION MANAGEMENT
Authors YAZDANI, MORTEZA , Wen, Zhi, Liao, Huchang, Banaitis, Audrius, Turskis, Zenonas, YAZDANI, MORTEZA
External publication No
Means J. Civ. Eng. Manag.
Scope Article
Nature Científica
JCR Quartile 2
SJR Quartile 2
JCR Impact 2.33800
Area International
Publication date 01/01/2019
ISI 000507396100011
DOI 10.3846/jcem.2019.11309
Abstract This study investigates an extended version of the combined compromise solution method with grey numbers, named CoCoSo-G for short, to measure the performance of suppliers in a construction company in Madrid. Seven criteria from a relevant previous study are the basis for assessing the performance of suppliers, while ten suppliers are composing our decision matrix. To initiate the decision-making process, we invite experts to aid us in the qualitative evaluation of the suppliers using grey interval values. Two weighting methods, including the DEMATEL (Decision Making Trial and Evaluation Laboratory) and BWM (best worst method) are used to achieve the importance of supplier criteria in a combined manner. The DEMATEL method is used to realise the best and worst criteria, and the BWM is used to sort the criteria according to a linear programming formulation. The CoCoSo-G method used to release the score of each supplier and rank them. We compare the results obtained by the CoCoSo-G with those obtained by the Complex Proportional Assessment method. It is evident that offering grey values for supplier qualification, using the combined weighting tool and proposing the new CoCoSo-G approach facilitate the evaluation process while indicating trustable outcomes.
Keywords multi-criteria decision-making; supplier selection; grey values; Combined Compromise Solution method; Co-CoSo; CoCoSo-G; Best-Worst method
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