this state-of-the-art book explores the concept of knowledge-intensive computer-aided design (cad) systems. this concept advocates that life-cycle knowledge regarding the product and design process must be incorporated in the center of cad architecture. it focuses on the systematization and sharing of knowledge of many types in many places. it is concerned with knowledge management over product life-cycle. the topics covered in the book include: ontology knowledge-intensive cad (kic) knowledge-intensive design (kid) knowledge representation for kic. this valuable new book contains the proceedings of the third workshop on knowledge intensive cad, sponsored by working group 5.2 of the international federation for information processing (ifip) and held on december 1-4, 1998 in tokyo, japan. knowledge-intensive computer aided design will be essential reading for researchers, engineers and technical managers involved in the development of advanced applications for knowledge management, engineering design, and manufacturing.