组成这些分支的流程片段理所当然地具有修改数据的能力。

The process fragments that comprise these branches can of course modify the data.

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该方法具有修改范围小，编程方便，可操作性强等特点。

This method has the advantages such as less modifying area, easily programming, more realizable and so on.

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同时，因为你测试的产品将不可避免地要不断变化，你需要具有修改和扩展你的工具的能力。

Also, because the products that you test will inevitably change over time, you have to build in the ability to modify and expand your tools.

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