Which document decomposes project deliverables into smaller, more manageable components?
Correct. WBS decomposes deliverables into smaller components.
Why this answer
The Work Breakdown Structure (WBS) is the project management document that decomposes project deliverables into smaller, more manageable components, often called work packages. This hierarchical decomposition enables accurate estimation, assignment, and tracking of work. The WBS is defined in the PMBOK Guide as a deliverable-oriented grouping of project elements.
Exam trap
CompTIA often tests the distinction between the WBS (which decomposes deliverables) and the project schedule (which decomposes activities over time), leading candidates to confuse the two documents.
How to eliminate wrong answers
Option A is wrong because the project schedule shows the timing and sequence of activities, not the decomposition of deliverables into components. Option C is wrong because the project charter authorizes the project and assigns the project manager, but it does not break down deliverables. Option D is wrong because the risk register lists identified risks and their responses, not the hierarchical breakdown of deliverables.