An intelligent feature\|based product model framework and its implementation

This paper deals with the architecture, working mechanism of an intelligent feature\|based product modeling system and main technology for implementation. Product is encapsulated as an object composed of geometry information, non\|geometry attributes and knowledge relating to the product. Feature\|based modeling is an intelligent approach in modeling technology. Features in a feature\|based modeling system could be classified as application features and system features. Application features are application domain\|oriented, and can be defined or expanded by users to meet the application domain requirements. System features are low level normalized features provided by modeling core system. The modeling system provides the utility function for developing new complicated feature\|based combining system features.