项目管理专业人士资格认证（PMP）题库（1459题）

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随着项目的进展，偏差分析表明与绩效测量基准相比，实际的项目绩效会恶化。因此，对成本、进度和范围的估算不再有效。团队确定大量的新功能、变更请求和缺陷修复是差异背后的主要原因。项目经理要确保在实际进展的基础上对项目的剩余工作进行进一步的估算，最好的行动方案是什么？
As the project progresses, the variance analysis shows that actual project performance compared to the performance measurement baseline deteriorates. As a result, estimates for cost, schedule, and scope are no longer valid. The team determines that a high volume of new features, change requests, and defect repairs are the main reason behind the variance. What is the project manager's best course of action to ensure that further estimates for the remainder of the work on the project are made based on real progress?

A.将产品开发方法转换为通过短迭代来适应和度量进度 Switch the product development approach to adaptive and measure progress via short iterations

B.限制项目中允许的新功能、变更请求和缺陷修复的数量 Limit the number of new features, change requests, and defect repairs allowed on the project

C.请使用自下而上估算成本和进度计划估算技术以及三点估算范围 Use a bottom-up estimating technique for cost and schedule, and three-point estimating for scope

D.基于单个的基准而不是单一的综合基准来衡量进度 Measure progress based on the individual baselines instead of the single integrated baseline

知识点：PMP新模考（二）

参考答案：A

解析：知识点出处： 敏捷实践指南 页码：P18 章节：3.1 四种生命周期特征。 变更过多，说明需求是动态的，不建议使用瀑布型。