以下描述中错误的是（）。
- A.在迭代型生命周期的项目中，先为整个项目确定一个高层级的愿景，再针对每一次迭代明确详细范围
- B.在收集需求过程中识别出的所有需求应都包含在项目中
- C.需要多次反复开展定义范围过程
- D.定义范围最重要的任务就是详细定义项目的范围边界
正确答案及解析
正确答案
解析
在迭代型生命周期的项目中，先为整个项目确定一个高层级的愿景，再针对每一次迭代明确详细范围。由于在收集需求过程中识别出的所有需求未必都包含在项目中，所以定义范围过程就要从需求文件(收集需求过程的输出)中选取最终的项目需求，然后制定出关于项目及其产品、服务或输出的详细描述。定义范围过程需要多次反复开展。
定义范围最重要的任务就是详细定义项目的范围边界。
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