Resource calendars affect a specific resource or category of resources. They reflect how some resources work only during normal business hours, while others work three full shifts, or a project team member might be unavailable, such as on vacation or in a training program, or a labor contract can limit certain workers to certain days of the week. Resource calendars are valuable inputs for ______ .
A．developing an approximation of the costs of the resources needed to complete each schedule activity
B．aggregating the estimated costs of individual schedule activities or work packages to establish a total cost baseline for project performance
C．searching the cause of positive and negative variances as part of integrated change control process
D．assuring that potential cost overruns do not exceed the authorized funding periodically and in total for the project
参考答案：B
解析： 资源日历会影响特定的资源或者特定列表的资源。它们反映出一些资源只在正常的工作时间内可用, 而另一些却可以三班倒使用, 或者某个项目团队成员不可用, 如正在休假或进行培训, 或劳动合同限制了工作者每周工作的天数。资源日历对 ______ 是非常有价值的输入。 A) 编制完成每个进度活动所需资源的近似成本 B) 将独立的进度活动或工作包的估算成本结合起来建立一个项目成本基准 C) 研究正面和负面偏差产生的原因, 作为整体变更控制过程的部分 D) 确保潜在的成本超支不会超过授权使用的资金并在项目总数之内 资源日历是成本预算过程的输入，选项B为成本预算过程的内容。选项A属于成本估算；选项C、选项D属于成本控制过程。