The XML technology was applied to build the expression format to change the CAD model which could not be shared into the middle model which could be shared by the collaborative clients on the network.

• 由于产品CAD模型信息不能用于网络共享,所以利用XML构建便于网络共享的中间模型的表达格式,将CAD模型转变成可供协同设计用户共享的中间模型。