关键词: 工程变更, 工程变更管理, 产品数据管理, 工作流

Abstract: In this paper, the technology of engineering change (EC) is researched on the basis of PDM system integration. By dividing the whole EC process into three sub-processes of request, evaluation and implementation, seven basic EC objects are abstracted and formally defined through the description of class graph and classes relationship. Moreover, the lifecycle and workflow of EC objects are discussed, and the synchronization model is set up by the analysis of collaboration throughout the EC lifecycle. Finally, the EC process is implemented based on the customization of Windchill system.

Key words: engineering change, engineering change management, PDM, workflow