摘要
For CAX systems,the technology of Feature-based product data integration is one of hot points. STEP AP214 protocol provides a standard to resolve this problem. This paper discusses the relations of entities in STEP AP214. Especially,for the problem that the protocol doesn't obviously give those features,it puts forward methods on expression and operation of feature-oriented data model. It gives the feature model mapping between AP214 and feature-based CAD systems,which is a basal theory to design out a uniform feature model of CAD/CAPP/CAM.
For CAX systems, the technology of Feature-based product data integration is one of hot points. STEP AP214 protocol provides a standard to resolve this problem. This paper discusses the relations of entities in STEP AP214. Especially,for the problem that the protocol doesn't obviously give those features, it puts forward methods on expression and operation of feature-oriented data model. It gives the feature model mapping between AP214 and feature-based CAD systems,which is a basal theory to design out a uniform feature model of CAD/CAPP/CAM.
出处
《计算机科学》
CSCD
北大核心
2003年第2期133-135,共3页
Computer Science
基金
国家863项目资助(863-511-820-002)
