Progressive elaboration, as it is known in the area of project management, refers to progressively enhancing, developing, and describing a plan as more particular information and more precise estimations become available.
Short iterations or development cycles are used in agile methodologies to achieve incremental elaboration, with a step of backlog refinement at the beginning (and occasionally throughout) each iteration. Rolling wave planning is a popular method of progressive elaboration in iterative projects.
Making a project scope management plan that outlines how the project scope will be established, confirmed, and controlled as well as how the work breakdown structure (WBS) will be developed and specified is known as scope planning. Defining the scope of the project and creating a thorough scope statement
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