CONSTRAINT MODELLING IN AN OBJECT-ORIENTED DATA MODEL FOR THE CAPP

摘要

The Object-Attribute-Relationship(OAR)model provides a single model tocapture data structure,behavior properties and knowledge rules in the CAPP application.This paper focuses on how to integrate a variety of different knowledge rules into the OARmodel and how to form transactions against the data structure with these rules in order toimplement intelligent process planning for designed components.The mapping from theOAR to Smalltalk can be directly carried out.It makes the implementation an entirely Ob-ject-Oriented approach.