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Work Breakdown Structure

Work Breakdown Structure. Kathy S. Schwaig. What is a Work Breakdown Structure (WBS)?. A WBS is a logical hierarchy of work packages involved in a project A WBS is an essential tool in the project planning process

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Work Breakdown Structure

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  1. Work Breakdown Structure Kathy S. Schwaig

  2. What is a Work Breakdown Structure (WBS)? • A WBS is a logical hierarchy of work packages involved in a project • A WBS is an essential tool in the project planning process • Once the project charter has been created, the project must be scoped out in more detail

  3. Purpose of a WBS • A WBS helps to define the work required for the project and to break it into manageable pieces called work packages • A good WBS can help in the development of schedules, budgets, and resource requirements • The WBS is a useful tool for identification of activities and assignment of responsibilities

  4. Possible Ways to Organize Work Breakdown Structures • By project phases • By project components • By functional areas • By types of work • By resource types

  5. Work Packages • A work package is a deliverable or product at the lowest level of the WBS • As a general rule, each work package should represent 80 hours (or less) of effort • Each work package should have a clearly identified person who is responsible for it • This individual should . . . • Be a member of the project team • Be responsible for the successful completion of the work package

  6. Example WBS (Inverted Tree Structure) Development & Implementation Maintenance Management Information System Requirements Definition System Development System Testing Documentation System Design Equipment History Module Spare Parts Inventory Control Module Work Order Control Module Data Dictionary Development Screen & Report Design Logic Diagrams Code Development Module Testing

  7. Example WBS(Indented List Format) Development & Implementation Maintenance Management Information System Requirements Definition System Design System Development Equipment History Module Work Order Control Module Data Dictionary Development Screen & Report Design Logic Diagrams Code Development Module Testing Spare Parts Inventory Control Module System Testing Documentation Implementation

  8. Identifying Activities • Look for any time-consuming element with identifiable beginning and ending points • Activities are at the lowest level of the WBS • Most activities should produce an identifiable deliverable • Long-duration activities (>1 month) should be sub-divided

  9. Guidelines for Developing a WBS • Develop WBS from the top down; not bottom up • Don’t exceed about 5 levels in a WBS • Identify work package manager for each WBS item • Check to make sure that the WBS is consistent with the project charter

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