The decomposition technique is used to do which of the following?

Question

Options

• ASubdivide the estimated costs of individual activities
• BSubdivide project deliverables and project work into smaller, more manageable components
• CRelate the work packages to the performing organizational units
• DShorten the project schedule duration and the amount of resources needed

• A
  15% (6)
• B
  75% (30)
• C
  5% (2)
• D
  5% (2)

Explanation

Decomposition is the technique of breaking down project deliverables and project work into smaller, more manageable components - ultimately producing the Work Breakdown Structure (WBS) - which is exactly what option B describes.

• A is wrong because subdividing estimated costs describes cost budgeting or cost aggregation, not decomposition.
• C is wrong because relating work packages to organizational units describes the Responsibility Assignment Matrix (RAM) or OBS (Organizational Breakdown Structure).
• D is wrong because shortening schedule duration by adding resources or overlapping tasks describes crashing or fast-tracking.

Memory tip: Think of decomposition like breaking a tree into branches and leaves - you're always moving from big to small (deliverables → work packages → activities), never touching cost estimates, org charts, or schedules directly.

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