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PK0-005 Practice Question: A project team is creating a work breakdown…
A project team is creating a work breakdown structure (WBS) for a software development project. The project manager wants to ensure that all deliverables are identified and decomposed into manageable work packages. Which tool should the team use to represent the hierarchical decomposition of the work?
⚠ Common exam trap
Test-takers frequently confuse the WBS with a Gantt chart (Option D) because both are used in project planning, but the Gantt chart focuses on scheduling and dependencies, not hierarchical decomposition.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Work breakdown structure (WBS)
The Work Breakdown Structure (WBS) is the correct tool because it is specifically designed to represent the hierarchical decomposition of project deliverables into manageable work packages. This aligns directly with the project manager's goal of identifying all deliverables and breaking them down for the software development project.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
RACI chart
Why it's wrong here
A RACI chart assigns responsibilities, not decomposes work.
- ✗
Risk register
Why it's wrong here
A risk register documents risks, not work decomposition.
- ✓
Work breakdown structure (WBS)
Why this is correct
The WBS is the correct tool for hierarchical decomposition of project work.
- ✗
Gantt chart
Why it's wrong here
A Gantt chart is used for scheduling, not for hierarchical decomposition of work.
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