关键词: 基因模型, 进化设计, 知识模型, 智能设计

Abstract: The status and developing trends of ICAD (Intelligent computer – aided design) are discussed in three layers. Then the knowledge models in ICAD are prompted, which are symbol models, artificial – neutral – net models and gene models. The gene models are studied and the main works are also put forward for father R&D.

Key words: Evolutionary design, Gene models, Intelligent computer – aided design, Knowledge models