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Successful product design depends on the ability to effectively manage and share engineering knowledge and experience throughout the entire development process. Thus, this paper presents a distributed engineering knowledge management approach for the practice of collaborative product design. Firstly, by combining meta-knowledge with XML based topic maps (XTM), a heterogeneous knowledge integration model in collaborative product design is proposed. Then, based on the knowledge integration model and characteristics of collaboration product design, a knowledge management-oriented collaborative work process model is built and a knowledge management framework in collaborative design is developed. Finally, a knowledge management system in collaborative design is constructed.