关键词: 产品设计, 知识推送, 本体, 粗糙集

Abstract: Due to large amount and scattered locations of design knowledge, the accuracy of knowledge push and efficiency of utilizing design knowledge were often low in product design process. Aiming at these problems, a knowledge push approach based on ontology and rough sets was proposed. The knowledge activity in product design process was analyzed, and the ontology models of product design task and knowledge were established. On the basis of ontology models, knowledge push rules were extracted from design knowledge using log by using rough sets and information technologies. Combined with designers'knowledge requirements, push rules were used to realize the precise knowledge pushing. An auto manufacturing enterprise was taken as the application case to verify the feasibility and effectiveness of this method.

Key words: product design, knowledge push, ontology, rough sets