关键词: 可持续设计, 质量功能展开, 用户需求, 模块重要度, 前景理论, 复杂比例评价方法

Abstract: To realize the sustainable design of products and make enterprises occupy a favorable position in the competitive market,an improved Quality Function Deployment (QFD) based method for determining the importance of sustainable design modules was proposed.Aiming at the uncertainty of the evaluation environment and the preference expression of customers,the mixed information was used to characterize the Customer Requirements (CRs) in QFD.Considering that the language terms were more suitable for the experts' expression habits in the fuzzy environment,the hesitant fuzzy language term set was used to evaluate the correlation between CRs and modules in QFD.The equilibrium proximity model was build to obtain the requirements importance of customers with high recognition,the model was build with expected correlation and deviation maximization to obtain the requirements importance of experts with high differentiation,then a adjustment parameter was set to determine the final importance of CRs.Considering the limited rational behavior of experts and many traditional methods had decision-making compensation,the prospect COPRAS method was used to determine the importance of the modules,and a example was given to illustrate the effectiveness of proposed method.

Key words: sustainable design, quality function deployment, customer requirements, modules importance, prospect theory, COPRAS method