Which statement about the levels of a Work Breakdown Structure is true?

Which statement about the levels of a Work Breakdown Structure is true?

• A. The WBS is a flat list with no hierarchy
• B. The WBS starts with detailed tasks at the top
• C. The WBS is used only for budgeting
• D. The WBS levels show increasing detail from top to bottom

Answer: (D)

Levels of a Work Breakdown Structure are arranged hierarchically so you decompose the project deliverables into progressively smaller components. At the top you have the final project outcome, and as you move downward each level adds detail, breaking items into larger pieces, then into discrete work packages that can be planned, estimated, and assigned. This structure—increasing detail from top to bottom—is what makes the WBS useful for scope definition and planning. A flat list with no hierarchy would miss the essential breakdown process. Starting with detailed tasks at the top goes against how projects are decomposed, since you typically begin with broad deliverables and drill down. And while budgeting is a part of using a WBS, its purpose isn’t limited to budgeting; it supports scope definition, scheduling, resource estimation, risk assessment, and communication as well.

Levels of a Work Breakdown Structure are arranged hierarchically so you decompose the project deliverables into progressively smaller components. At the top you have the final project outcome, and as you move downward each level adds detail, breaking items into larger pieces, then into discrete work packages that can be planned, estimated, and assigned. This structure—increasing detail from top to bottom—is what makes the WBS useful for scope definition and planning.

A flat list with no hierarchy would miss the essential breakdown process. Starting with detailed tasks at the top goes against how projects are decomposed, since you typically begin with broad deliverables and drill down. And while budgeting is a part of using a WBS, its purpose isn’t limited to budgeting; it supports scope definition, scheduling, resource estimation, risk assessment, and communication as well.