what is the wbs typically used for
From Wikipedia, the free encyclopedia. Example of a product-oriented work breakdown structure of an aircraft system. A work breakdown structure (WBS) , in project management and systems engineering, is a deliverable-oriented decomposition of a project into smaller components.A work breakdown structure is a key project deliverable that organizes the team's work into manageable sections.The Project Management Body of Knowledge (PMBOK) defines the work breakdown structure as a deliverable oriented hierarchical decomposition of the work to be executed by the project team..utually exclusive: In addition to the 100% rule, it is important that there is no overlap in scope definition between different elements of a work breakdown structure.