Application of fuzzy ordered weighted geometric averaging (FOWGA) operator for project delivery system decision-making

摘要

Appropriate project delivery model is one of the key factors affecting a project's success. Most decision-making methods of project delivery are based on vague qualitative indicators. However, a numerical scale is usually unable to effectively and accurately reflect the preferences of decision-makers. Scholars have found that applying the fuzzy set theory and using the fuzzy ordered weighted geometric averaging (FOWGA) operator for project delivery system (PDS) decision could reduce the judgment information losing to a certain extent and improve the objectivity and fairness of group decision-making. In this study, we further addressed the decision method and procedure for PDS decision by using the FOWGA operator and demonstrated the mode selection method as well. The results demonstrated that the method can overcome the current drawback of subjectivity of the project delivery decision method, better solve the decision-making information losing problem during assembling process and further reflect the priority of the PDS so as to improve the efficiency of the group decision.