Primarily, project management employs two categories of work breakdown schedules, which are process-oriented and deliverable-oriented. A WBS serves to deconstruct the product into distinct steps and phases for clarity of the entire process. At the top of the hierarchy is the final product. It's a visual representation of the entire project management process. It focuses on each element's deliverables, rather than the employees' individual actions. A work breakdown structure (WBS) is a document that highlights a project visually and hierarchically.