By analyzing dynamical data and engineering (requirement -) driven, PDM application frame is set up including person managing model, product object model and process managing model.

通过对动态数据特性的分析，建立了以工程需求为驱动，由人员管理模型、产品对象模型及过程管理模型等组成的PD M应用框架。

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For constructing workflow model from initial requirement, a scenario-driven model design approach is put forward.

针对从初始需求出发逐步构造工作流模型的问题，提出了一种场景驱动的模型设计方法。

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