设计文件更改控制是保证产品质量的重要环节。本文针对设计文件更改活动的特点,分析了传统设计文件更改普遍存在的问题,提出了基于PDS系统建立CMII变更管理的模型和流程,阐述了CMII变更管理在科研生产过程中的应用和具体实施,以及实施后管理模式的变化。 Design document change control is to ensure product quality an important part. In this paper, according to the characteristics of the design document change activities, this paper analyzes the ubiquitous problems of the traditional design document changes, puts forward the model and process of establishing CMII change management based on PDS system, expounds the application and implementation of CMII change management in scientific research and production process, As well as the change of management mode after implementation.