Research on model data exchange method between different structure CAD systems

A novel data exchange method based on neutral semantic feature conversion was proposed in this paper. A neutral semantic feature converter was used as transfer station, and modeling information of different systems would be transformed into a kind of unified data message format, and feature dependency graph was used to represent feature modeling information. Mapping relations between heterogeneous CAD systems' commands were implemented using heterogeneous semantic conversion based on this method. System implemented in this paper indicated that synchronous collaborative system of heterogeneous CAD proposed can make users work in a environment of real-time collaborative, and can improve product quality and reduce product design cycle.