![]() ![]() ![]() Home | About | Privacy | Reprints | Terms of UseĬopyright © 2002-2023. The WBS can be used to identify the tasks in the CPM and PERT project planning models. It is developed before dependencies are identified and activity durations are estimated. The work breakdown structure is the foundation of project planning. Defining tasks so that their duration is between several days and a few months works well for most projects. On the other extreme, the tasks may become too large to manage effectively. On the one extreme, a very high level of detail is likely to result in micro-management. Care should be taken to use a proper level of detail when creating the WBS. The breaking down of a project into its component parts facilitates resource allocation and the assignment of individual responsibilities. The lowest level in the hierarchy often comprises activities performed by individuals, though a WBS that emphasizes deliverables does not necessarily specify activities. Higher levels in the structure generally are performed by groups. ![]() The WBS may be organized around deliverables or phases of the project life cycle. Others use the terms phases, entries, and activities. For example, some organizations refer to different levels as tasks, sub-tasks, and work packages, as shown in the above outline. Each organization uses its own terminology for classifying WBS components according to their level in the hierarchy. ![]()
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