Which of the following tasks focuses on decomposing work packages?

According to the PMBOK® Guide, the process of Define Activities is the specific process of identifying and documenting the actions to be performed to produce the project deliverables.

The Mechanism of Decomposition: In the Create WBS process, the project is broken down into deliverables known as " Work Packages. " In the Define Activities process, the project manager further decomposes those Work Packages into smaller components called Activities.

The Difference: While a Work Package is a deliverable (a " noun " ), an Activity is the actual work or effort required to create that deliverable (a " verb " ).

Output: The primary outputs of this decomposition are the Activity List, Activity Attributes, and the Milestone List. This provides the necessary detail for estimating durations and developing the project schedule.

Analysis of Other Options:

A. Adjust duration estimates: This occurs during the Estimate Activity Durations or Develop Schedule processes. It is a refinement of time based on known work, not the act of breaking work packages down.

C. Complete rolling wave planning: Rolling Wave Planning is a technique used within the Define Activities process (and others) where work in the near term is planned in detail, while work in the future is planned at a higher level. While it involves decomposition, it is the approach used, whereas " Define Activities " is the specific task/process focused on the decomposition itself.

D. Develop milestone list: A milestone list is an output of the Define Activities process. It is a list of significant points or events in a project, not the task of decomposing the work packages.