关键词: 产品服务系统, 用户体验, 体验降低风险, 再设计模块

Abstract: With Failure Mode and Effects Analysis (FMEA),an approach of identifying Product Service System (PSS) redesign modules based on user experience was proposed.By taking Failure Chain (FC) as the risk assessment object,Values of Risk Priority Number (RPN) was calculated to judge the decrease degree of PPS on user experience level,and risk factors were redefined in PSS.Basic Weight (BW) integrated with Improved Weight (IW) was presented to obtain the relationship between user experience and experience dimensions.BW was calculated with the importance application of Rough Set (RS),and Competitive Weight (CW) based on Maximal Deviation Approach (MDA) was presented to integrate with the current performance of experience to acquire IW.The relationship between experience dimensions and PSS modules was measured with RPN,Thus the Experience Reduction Risk Model (ERRM) was acquired.Under the redesign cost constraint,the optimal PSS redesign modules combination was obtained.A crane PSS case study was carried out to demonstrate the feasibility of proposed approach.

Key words: product service system, user experience, experience reduction risk, redesign modules