WBS diagram is a project management tool that takes a step-by-step approach to complete large projects with multiple moving parts. A work breakdown structure (WBS) can integrate scope, cost, and deliverables into a single tool by breaking the project into smaller components. While most work breakdown structures are deliverable-based, they can also be phase-based. Continue reading to learn more about what a work breakdown structure can do for your company. It organizes and defines the project's overall scope. Each successive level represents a more detailed definition of the project work. The work breakdown structure (WBS) diagram in Project Management is divided into work packages. The hierarchy's deliverable orientation includes both internal and external deliverables."