摘要：Household appliance product design is a big trend in current industrial design circle. Reverse engineering is one of the most common CAID means in modern industrial design. In order to support reusing product appearance design knowledge, this paper proposes the model used for resolving innovative product appearance case. According to the three stages of aesthetics impression, semantic judgment and symbol contact experienced by users to cognize product, this paper divides the product into three kinds of appearance innovative types of formal aesthetics, usage mode and cultural fashion. By utilizing taxonomy principle and appearance design innovative process, this paper sets up three kinds of appearance innovative types corresponding to design knowledge frame model used for extracting and reusing appearance innovative design knowledge. Such model is applied to setting up product innovative case library, helping designer search and apply previous successful cases and realizing user-centered product development. Through the use of such database by designer, this paper shows its effectiveness.
