The technique of decomposition, as it is applied to defining activities, involves subdividing the project work packages into smaller, more manageable components called activities or schedule activities. The Define Activities process defines the final outputs as schedule activities rather than as deliverables, as is done in the Create WBS process (Section 5.3).
The activity list, WBS, and WBS dictionary can be developed either sequentially or concurrently, with the WBS and WBS dictionary in the Scope Baseline being the basis for development of the final activity list. Each work package within the WBS is decomposed into the activities required to produce the work package deliverables. This is often performed by the project team members responsible for the work package.
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What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.