What type of project structure is a hierarchically organized depiction of the resources by type?

Question

Options

• AOrganizational Breakdown Structure (OBS)
• BResource Breakdown Structure (RBS)
• CWork Breakdown Structure (WBS)
• DProject Breakdown Structure (PBS)

• A
  9% (4)
• B
  82% (37)
• C
  7% (3)
• D
  2% (1)

Explanation

Resource Breakdown Structure (RBS) is correct because it specifically organizes project resources - people, equipment, materials - hierarchically by type (e.g., human resources → engineers → software engineers), giving managers a structured view of all resource categories.

Why the distractors are wrong:

• A (OBS) maps the project to the organizational hierarchy (departments, teams, reporting lines) - it's about who is responsible, not resource types.
• C (WBS) decomposes work (deliverables and tasks) into smaller components - it's about what gets done, not resource categories.
• D (PBS) breaks down the product or physical components of what's being built - it's about outputs, not resources.

Memory tip: The key word in the question is "resources by type" - RBS has R for Resources, so when you see a hierarchy organized around what kinds of resources exist (labor, equipment, materials), think RBS.

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