Estimating activity durations uses information on activity scope of （ ） , required resource types, estimated resource quantities, and resource calendars.

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（ ）estimating is a technique for estimating the duration or cost of an activity ou project using historical data from a similar activity or project.

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Estimating activitydurations uses information on activity scope of （ ） , required resource types, estimatedresource quantities, and resource calendars.

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Estimate Activity Duration sis the process of estimating the number of work period sto complete indivities with estimated  resources.The tools and technques is not including（ ）.

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Estimating schedule activity costs involves developing an approximation of the costs of theresources needed to complete each schedule activity. Cost estimating includes identifying andconsidering various costing alternatives. For example, in most application areas, additional workduring a design phase is widely held to have the potential for reducing the cost of the executionphase and product operations. The cost estimating process considers whether the expectedsavings can offset the cost of th

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问答题

Activity的________方法用于关闭当前的Activity。

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