The correct answer would be option B, A definition of the hierarchy of project tasks, subtasks and work packages.
A work breakdown structure is a definition of the hierarchy of project tasks, subtasks and work packages
Explanation:
A work breakdown structure is shortly called as WBS. It is usually used in project management and system engineering.
The bigger project is divided into tasks, sub tasks and work packages, which are termed as components. Work breakdown structure is simply the breakdown of the project into these smaller components.
The goal of each component is achieved to achieve to overall goal of the project.
This framework helps in controlling the overall project, estimating the cost of the project, and completing the project on time, i-e, the schedule of the project.
WBS's effectiveness does not depend upon in how many levels the project is decomposed. It depends upon how effectively the decomposed components are executed and the goal is achieved.
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