Constructing an Interactive Kansei Novelty Design System Using Rough Set Theory

When a product is purchased, its value includes both its design and functional aspects. In the product design, Kansei, affectiveness, or sensibility of product is very important for the user value. However, designs that match the sensibilities tend to become ordinary designs. The design must be novel and align with the sensibilities of the user. This study aims to create sensible and novel design. In our previous study [3], we attempted to match the sensibilities of many users and we conducted research on the novelty of the design. However, sensible and novel design is very different among the users. Therefore, in this study, we focused on the sensible and novel design fit for each user, and we propose a design method for creating sensible and novel design. In our method, we repeatedly conduct interactive survey of Kansei in order to be able to better match the user's sensibilities and novelty. The rough set theory is applied to extract rules fit for the user sensibility, and arrange the rules, and according to the interactive survey the rules are refined, and create sensible and novel design fit for the user.