The thesis constructed the cttc pdm which based on the above technology . it was proved that the pdm for citc can improve the work efficiently remarkably . the pdm was praised by the users 目前，基于文件级数据集成的pdm系统，通过产品结构可以很好地管理产品设计和生产中的相关文档，但对于用户在工作流中用到的不同集成程序间的信息传递很少提供帮助。
