This paper proposes a novel design method that supports the realization of product design with high user satisfaction by selecting and evaluating needs and design variables not only from the designer’s perspective but also from the user’s point of view. Specifically, the Evaluation Grid Method is first applied to derive user needs and extract relevant design variables, constructing an evaluation structure diagram. The obtained user needs are then classified into Attractive Quality, One-Dimensional Quality, and Must-Be Quality categories based on the Kano Model. Furthermore, by incorporating the user’s perspective into Analytic Hierarchy Process (AHP) and Quality Function Deployment (QFD), the importance of both user needs and design variables is quantified based on users’ Kansei. The proposed method is applied to the design problem of jogging shoes, which enabled the derivation of the importance of both user needs and design variables for each quality category. As a result, the study presents the design guidelines that enable the realization of product designs with high Kansei value for users.
MAEDA et al. (Wed,) studied this question.