正解:B
According to the PMBOK Guide, the Define Activities process is the stage where the project manager identifies and documents the specific actions to be performed to produce the project deliverables. To do this effectively, two primary techniques are utilized:
* Decomposition: This is the same technique used in " Create WBS, " but with a different level of granularity. In this process, the Work Packages (the lowest level of the WBS) are further subdivided into Activities. While a work package is a deliverable, an activity is the actual work required to create that deliverable.
* Rolling Wave Planning: This is a form of progressive elaboration. It is used when the project team cannot define the work in detail for the entire project duration.
* Work to be performed in the near term is planned in detail.
* Work further in the future is planned at a higher level (often as Planning Packages).
* As the project progresses and more information becomes available, the planning packages are decomposed into detailed activities.
* The Output: The primary outputs of this process are the Activity List, Activity Attributes, and the Milestone List.
Analysis of Other Options:
* A. Develop Schedule: This process involves analyzing activity sequences, durations, resource requirements, and schedule constraints to create the project schedule model. While it uses the results of decomposition, it does not perform the decomposition itself.
* C. Define Scope: This process involves developing a detailed description of the project and product.
The technique used here is Product Analysis and Alternatives Generation, leading to the Project Scope Statement.
* D. Collect Requirements: This process focuses on determining, documenting, and managing stakeholder needs. Techniques include Interviews, Focus Groups, and Questionnaires. It occurs before the work is decomposed into activities.