摘要： 总结了现代产品开发过程的特点和存在的问题，分析了开发过程中的任务及任务之间的关系，提出了产品开发中的过程控制规则，讨论了路由规则和任务约束，给出了工作流模型完整性的检测算法。通过开发任务的逐级灵活分解，降低了开发过程管理的复杂性，给出了基于任务分解的任务流控制模型和算法。介绍了一个柔性开发过程控制模型实例。

关键词: 柔性过程模型, 任务路由条件, 产品开发过程

Abstract: This paper reviews the characteristics and deficiencies of modern development process, such as dynamic development team and uncertain workflow. Complex relations among tasks are analysed. Process control rule(PCR) in NCPD is proposed, which includes route condition and task constraint. PCR-based flexible process model is proposed, which the instance of workflow model depends on the conditions during product development. Inspection approach for process integrality is given through two algorithms. Through task decomposition, task flow model reduces the complexity of development process. An instance of development process is introduced.

Key words: Flexible process model, Task route condition, Product development process