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任务管理是ＰＤＭ系统中实现流程控制的一种机制。本文在阐述任务管理的概念和内容的基础上，探讨了在ＰＤＭ系统中任务的固有特性，并介绍了一套实现任务管理的模型，为实现ＰＤＭ的任务管理提供了理论基础和初步的解决方案。
Task management is a mechanism for implementing process control in PDM systems. Based on the concept and content of task management, this paper explores the inherent characteristics of tasks in PDM system and introduces a set of model to realize task management. It provides a theoretical basis and a preliminary solution for task management of PDM .