抄録
Statistical approach to kansei engineering methodology for kansei product development are restricted to explicitly show interactive effects between product elements or kansei words because these use mainly linear statistical model. In this point, a rough set approach to kansei engineering methodology for developing kansei product design is promising. This paper proposes a rough set approach to product development based on kansei engineering and shows its application to car floor mat development. Its advantage is to provide a systematic approach to the process analysis from the clarification of customers' needs analysis to the identification of design elements. As a result, we obtained good design candidates for new car floor mat by using design expert knowledge as well as both results of quantification theory type I and rough set.
