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.
为了实现上述的模型，开发了相应的过程建模工具WFD，以实现过程模型的可视化建立。
In order to realize the model, we developed a tool for process modeling named WFD, with which end users can model process visually.
进一步，业务过程建模工具通常并不具备处理这些关系的能力。假如它们具备了这些能力，那么它们也许就不再是一款有效的业务分析工具了。
Further, business process modeling tools don't often have the capabilities necessary to address these concerns, and, if they did, they probably wouldn't be effective tools for business analysts.
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