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Product Breakdown Structure (PBS)In project management, a Product Breakdown Structure (PBS) is an exhaustive, hierarchical tree structure of components that make up a project deliverable, arranged in whole-part relationship.A PBS can help clarify what is to be delivered by the project and can contribute to building a work breakdown structure.The PRINCE2 project management method suggests the use of product based planning, part of which is developing a Product Breakdown Structure.Work Breakdown Structure (WBS)The United States Department of Defense (DOD) created the Work Breakdown Structure concept as part of the Polaris mobile submarine-launched ballistic missile project.
A Work Breakdown Structure is a hierarchical decomposition of the deliverables needed to complete a project. It breaks the deliverables down into manageable work packages that can be scheduled, costed and have people assigned to them. A Work Breakdown Structure is a standard project management tool and the basis for much project planning.12.What could the role and responsibility of the project manager be in relation toproject planning? 13.Give examples of types of project initiation documentation.While it's normal as part of a project to put the detailed plans, controls and reporting mechanisms into place, how do you get everyone on the same page to start with?This is accomplished by creating a Project Initiation Document (PID) – the top-level project planning document. In it, you bring together all of the information needed to get your project started, and communicate that key information to the project's stakeholders. With a well-put-together Project Initiation Document, you can let everyone understand where the project's heading from the outset.Your Project Initiation Document does the following:Defines your project and its scope.