Abstract: The modification of each part can lead to the modification of the master model，and vice versa.The paper has put forward the assumption to utilize the characteristics of parameterized model to let the client terminal send the required parameters to the server through the network model of client/server，so as to obtain the real-time updated information of the model.Furthermore，changing the direction of the information flow can realize the reading-and-writing purview of the model.Through this method it is possible to modify any established parameterized model without requiring the designers to learn the modeling software，while it can also help enterprises enhance their work efficiency and save fund at the same time.

Key words: distributed resource environment, Unigraphics（UG）, parameterized, master model

摘要： 分布式资源环境下，不同的设计主体之间需要基于同一主模型进行合作设计。利用模型参数化的特征，基于主模型的思想，使用VC基于UG二次开发原理开发了客户机/服务器应用程序，实现了客户端向服务器发送所需要的参数来获得模型的实时更新信息，通过改变信息的流向控制了模型的读写权限。通过该方法可以对任意参数化模型进行修改而无需使用者学习该建模软件，可以帮助企业提高工作效率和节约资金。

关键词: 分布式资源环境, Unigraphics（UG）, 参数化, 主模型