A user-centered design method based on evaluation grid method and rough sets

抄録

This paper proposes a user-centered design method for the entire process, from needs discovery to design solution derivation. The proposed method consists of five steps: visualize users’ evaluation structure, select the needs to be the design target, quantitatively extract design variables related to the selected needs, conduct sensory evaluations using samples created by the experimental design method, and derive the design solution using rough sets. Evaluation Grid Method is used for the discovery of needs and design variables. For the selection of needs, we refer to the quality classification by Kano model. The importance is used as an indicator for the selection of design variables. Rough sets are applied to the derivation of design solutions. This paper applies the proposed method to the design of a perfume bottle as a case study and derives design solutions that satisfy the needs of each cluster. The proposed method can potentially achieve user-centered products that reflect users’ evaluation structures. Various applications of our proposed method contribute to the development of user-centered design. The proposed method is expected to be applied to a wide range of products and services, contributing to the development of user-centered design.