This paper analogizes the derived CAPP with variant designs in detail. A product classification code system is introduced based on the theory of likeness and a set of feature code mechanisms is also presented.

• 文中详细比较了派生式CAPP与产品变型设计的工作过程,给出了基于相似性原理的产品分类编码方法,提供了一套相对独立的产品变型设计特性代码操作机制。