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Sample work breakdown structure with some branches

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Figure 5-6. Sample Work Breakdown Structure with Some Branches Decomposed Down Through Work Packages.2 DecompositionDecomposition is the subdivision of project deliverables into smaller, more manageable components until the work and deliverables are defined to the work package level. The work package level is the lowest level in the WBS, and is the point at which the cost and schedule for the work can be reliably estimated. The level of detail for work packages will vary with the size and complexity of the project.Decomposition may not be possible for a deliverable or subproject that will be accomplished far into the future. The project management team usually waits until the deliverable or subproject is clarified so the details of the WBS can be developed. This technique is sometimes referred to as rolling wave planning.Different deliverables can have different levels of decomposition. To arrive at a manageable work effort (i.e., a work package), the work for some deliverables needs to be decomposed only to the next level, while others need more levels of decomposition. As the work is decomposed to lower levels of detail, the ability to plan, manage, and control the work is enhanced. However, excessive decomposition can lead to non-productive management effort, inefficient use of resources, and decreased efficiency in performing the work. The project team needs to seek a balance between too little and too much in the level of WBS planning detail.Decomposition of the total project work generally involves the following activities:Identifying the deliverables and related workStructuring and organizing the WBSDecomposing the upper WBS levels into lower level detailed componentsDeveloping and assigning identification codes to the WBS componentsVerifying that the degree of decomposition of the work is necessary and sufficient.Identifying the major deliverables of the project and the work needed to produce those deliverables requires analyzing the detailed project scope statement. This analysis requires a degree of expert judgment to identify all the work including project management deliverables and those deliverables required by contract.Structuring and organizing the deliverables and associated project work into a WBS that can meet the control and management requirements of the project management team is an analytical technique that may be done with the use of a WBS template. The 

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Term
Spring
Professor
Li
Tags
Management, Project Management, 5 2 1 4, 4 4 3 1, Project Management Institute Practice, 4 1 1 4, 4 4 1 4

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