Cocurrent Engineeing-oriented CAPP (CECAPP) is one of the key issues in computer-aided CE. This article presents some key techniques for intelligent CECAPP. After the overall system structure of CECAPP and its peculiarity are given, a feature-based CE-oriented unified product data model is established, and also method of functional integration of CECAPP and production plan & schedule is discussed. An object-oriented method is applied into feature-based knowledge representation and reasoning. Key words current engineering, CAPP, unified product data model Class number TH391.7, TB166
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