通常，项目整体变更管理过程涉及到负责批准或拒绝变更请求的变更控制委员会。下列关于变更控制委员会的描述中，错误的是（ ）。
- A.在一些大的复杂的项目中，可能会有多个变更控制委员会，他们负有不同的职责
- B.变更控制委员会的角色和职责应在变更控制和配置控制过程中予以明确定义
- C.变更控制委员会的角色和职责应取得所有关键项目干系人的认可
- D.变更控制委员会更新项目计划、任务清单和时间表，以反映变更对已做或在做工作的影响
正确答案及解析
正确答案
解析
本题考查知识点为CCB的主要职责。
通常，项目整体变更管理过程涉及到负责批准或拒绝变更请求的变更控制委员会，这一委员会的角色和职责应在变更控制和配置控制过程中予以明确定义，并应取得所有关键项目干系人的认可。很多大型组织规定了一种多级的委员会结构以划分职责。CCB是决策机构，不是作业机构；通常CCB的工作是通过评审手段来决定项目基准是否能变更，但不提出变更方案。
而更新项目计划、任务清单和时间表，反映的是变更对在做或未做工作的影响。这些工作不应由变更控制委员会来做。
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