Neutral Semantic Feature Transition Upon Collaborative Design Within Heterogeneous CAD Systems

With the rapid development of network technology and computer technology, Web-based distributed manufacturing has being the necessary trend of manufacturing technology. CSCD is a essential tool for product development,which includes CSCW and manufacture technology. CSCD is able to shorten the product development time, make best use of remote resources and reduce the design cost. The synchronized collaborative design within heterogeneous CAD has made a rapid and further progress in the past decade.This paper is based on Semantic Feature Modeling, proposed a kind of new architecture which can support the Collaborative Design of heterogeneous CAD systems, and solved the problem of "writing conflict" between heterogeneous CAD systems ,improved the efficiency of real-time response.Besides, this paper proposed data exchange method based on neutral semantic feature transition. This method adopts neutral semantic feature converter,which can transit information to the same formats, FDG ,which is based on Semantic Feature Modeling, is used to figure feature model information. An object oriented representation of NSFT is given and employed to support the translation between Local System Modeling Commands (LSMC) and Neutral Semantic Feature Commands (NSFT). Moreover, two kinds of translators, LSMC-to-NSFT and NSFT-to-LSMC, are established and executed. This method keeps high-level design intent of design, and makes the designers in the global together complete a model design.Finally,Authors'preliminary applications in the Collaborative Design between HUSTCAIDS and AutoCAD are also introduced to prove the feasibility of the theories above.