CBR-Based Same-Indefinite-Contrary Product Design and Application

Set pair theory realizes holistic disposal of system information from viewpoint of relation. This paper combines CBR, set pair theory and the mechanism of knowledge engineering together, and effectively integrates the knowledge from field expert's experience with human innovative thinking in product design. A new product design paradigm, namely same-indefinite-contrary design method based on CBR is put forward for realizing the automation, intelligence and systematization in product design, and has the ability of self-learning. Aiming at the three phases of market-oriented product design its application was preliminarily explored.