（）involves comparing actual or planned project practices to those of other projects to generate ideas for improvement and to provide a basis by which to measure performance. These other projects can be within the performing organization or outside of it, and can be within the same or in another application area.

On some projects, especially ones of smaller scope, activity sequencing, activity resource estimating, activity duration estimating, and （） are so tightly linked that they are viewed as a single process that can be performed by a person over a relatively short period of time.

（）from one phase are usually reviewed for completeness and accuracy and approved before work starts on the next phase.

The（）provides the project manager with the authority to apply organizational resources to project activities.

PDM includes four types of dependencies or precedence relationships: （）. The completion of the successor activity depends upon the initiation of the predecessor activity.

In approximating costs, the estimator considers the possible causes of variation of the cost estimates, including（） .

Project（） Management is the Knowledge Area that employs the processes required to ensure timely and appropriate generation, collection, distribution, storage, retrieval, and ultimate disposition of project information.

Organizations perform work to achieve a set of objectives. Generally, work can be categorized as either projects or operations, although the two sometimes are（）

（）is the budgeted amount for the work actually completed on the schedule activity or WBS component during a given time period.

空白（1）處應(yīng)選擇（）