Novel Kansei Design Method Based on Rough Set Theory

The value of a new product is determined based on its conventional functional value, such as its usability, and its added design value. The product design should match the Kansei of a customer and the product concept. A design has a low value if it fits the concept but creates a new product similar to other products. This paper proposes a method to create novel designs that match the concept of a new product. The proposed method is developed by adding an index to attribute values using the rough set theory. We develop a technique to create stylish and unconventional leather shoes. Furthermore, the relevant design is created using 3D computer graphics. Through verification, we create stylish and uncommon leather shoe designs at 62.5%.