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Unformatted text preview: tion areas or performing organizations have standard or semistandard WBSs that can be used as templates. For example, the U.S. Department of Defense has recommended standards WBSs for Defense Material Items (MILHDBK-881). A portion of one of these templates is shown as Figure 5-2. .2 Decomposition. Decomposition involves subdividing the major project deliverables or subdeliverables into smaller, more manageable components until the deliverables are defined in sufficient detail to support development of project activities (planning, executing, controlling, and closing). Decomposition involves the following major steps: (1) Identify the major deliverables of the project, including project management. The major deliverables should always be defined in terms of how the project will actually be organized. For example: The phases of the project life cycle may be used as the first level of decomposition with the project deliverables repeated at the second level, as illustrated in Figure 5-3. The organizing principle within each branch of the WBS may vary, as illustrated in Figure 5-4. (2) Decide if adequate cost and duration estimates can be developed at this level of detail for each deliverable. The meaning of adequate may change over the course of the project--decomposition of a deliverable that will be produced far in the future may not be possible. For each deliverable, proceed to Step 4 if there is adequate detail, to Step 3 if there is not--this means that different deliverables may have differing levels of decomposition. 58 NAVIGATION LINKS ACROYMNS LIST ACRONYMS LIST ACROYMNS LIST A Guide to the Project Management Body of Knowledge (PMBOK Guide) 2000 Edition 2000 Project Management Institute, Four Campus Boulevard, Newtown Square, PA 19073-3299 USA Chapter 5--Project Scope Management Software Product Release 5.0 Project Management Product Requirements Detail Design Construct Integration and Test Planning Software Software Software Software Meetings User Documentation A Guide to the A Guide to the
User Documentation Training Program Materials Administration Training Program Materials This WBS is illustrative only. It is not intended to represent the full project scope of any specific project, nor to imply that this is the only way to organize a WBS on this type of project. Figure 53. Sample Work Breakdown Structure Organized by Phase (3) Identify constituent components of the deliverable. Constituent components should be described in terms of tangible, verifiable results to facilitate performance measurement. As with the major components, the constituent components should be defined in terms of how the work of the project will actually be organized and the work of the project accomplished. Tangible, verifiable results can include services as well as products (e.g., status reporting could be described as weekly status reports; for a manufactured item, constituent components might include several individual components plus final assembly). Repeat Step 2 o...
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- Fall '13
- The American