CompTIA Project+ (PK0-005)Project Life Cycle PhasesEasy

A project manager is in the planning phase of a complex construction project. To ensure all work required for the project is identified and organized, and to provide a clear basis for future planning (e.g., scheduling, cost estimating), which key document should be developed?

  1. AStakeholder Register
  2. BRisk Management Plan
  3. CProject Schedule
  4. DWork Breakdown Structure (WBS)
Show answer & explanation

Correct answer: D. Work Breakdown Structure (WBS)

The Work Breakdown Structure (WBS) is a deliverable-oriented hierarchical decomposition of the total scope of work to be carried out by the project team. It serves as the foundation for planning the project schedule, cost, resources, and risks.

Why the other options are wrong

  • A. The Stakeholder Register identifies project stakeholders, which is an initiation activity, not a document for defining project work scope.
  • B. The Risk Management Plan details how risks will be managed, but doesn't define all project work.
  • C. The Project Schedule is derived from the WBS, not the foundational document for identifying all work.

Work Breakdown Structure (WBS)

A hierarchical decomposition of the total scope of work to be carried out by the project team to accomplish project objectives and create the required deliverables.

  • Deliverable-oriented hierarchy.
  • Breaks down work into smaller, manageable components.
  • Foundation for planning schedule, cost, and resources.

Memory trick: To build a complete 'puzzle', you need a 'blueprint' of all the pieces.

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