在扩展类的支持下，工作流描述语言可以描述缺陷跟踪过程中需要的度量采集、通知和验证等功能。

Supported by the extended class, workflow description language can define the functions of metrics collection, notification and validation for bug track process.

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网格工作流平台是实现网格计算的重要基础软件，而网格工作流描述语言则是定义和使用工作流的重要工具。

Grid workflow platform is a basic software to realize grid computing, and grid workflow language is a very important tool to define and use workflows.

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在工作流系统中，对业务过程的抽象需要过程描述语言和过程建模工具的支持。

In workflow management system, process description language and process modeling tool are needed to abstract the business processes.

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