( 3 ) in the process of realizing the cg - cims , technique information subsystem is the key point of the article , based on the developing trend of the enterprise and its real needs , give out the tis designing idea of three dimension modeling , process planning based on the database and virtual assembly . and design a system plan and function model of cad / capp / cae / cam / pdm , and analysis the relative software choosing and information integration ( 3 )在cg - cims实施过程中，技术信息分系统是本文研究的重点，根据cad技术的发展趋势和企业的实际需要，提出以三维实体建模、基于数据库的工艺设计和实现虚拟装配为核心的tis设计思想，设计了cad capp cae cam pdm集成化tis系统方案和功能模型，分析论述了相关软件的选型原则和信息集成方法。
