基于面向对象技术的特征表示法

目的　研究特征的计算机表达方法 .方法　通过对比 ,认为特征表达与面向对象技术有许多相通相似之处 ,他们是当前设计 CAD/CAPP/CAM的两大工具 .结果　运用面向对象技术实现特征表示就是通过面向对象技术建立适用于产品数据交换的计算机内部数据表达模式 .结论　建立起来的计算机内部数据模式是表达特征和特征之间约束关系的有效途径 .

Method of Expressing Features Using an Object-oriented Technique

Aim\ To study the expressing method of the feature. Methods\ By comparison, the similarities of the feature and the object oriented technique, which are two kinds of tools to design CAD/CAPP/CAM, are introduced. Results\ The goal of research on feature representation using the object oriented technique is to establish data models available for product data exchange in computers. Conclusion\ The established data model in computer is available to express the features and the constraints among the features.