【摘要】 工艺专家知识的分类和表示是开发创成式ＣＡＰＰ系统的重要内容之一，本文从机械加工过程的角度，探讨了工艺知识的分类、表示等问题。根据加工过程的层次性，归纳出工艺知识的具体分类，在此分类的基础上，运用面向对象的设计思想和知识的框架表示方法，提出了各类工艺知识的框架表示，提高了知识库的可维护性。更多还原

【Abstract】 Expert knowledge taxonomics and repre sentat ion” in process planning is one of key technologies in developing generativ e CAPP system. This paper discussed some important issues such as knowledge taxo nomies and representation from the viewpoing of mechanical machining process. Th e result of knowledge taxonomies according to the hierarchy of machining process was presented in the paper, and all kinds of knowledge were represented with Ob ject Oriented concept and frame representation on the basis of the taxonomies. This kind of representation improved the maintainability of the knowledge base.更多还原