Visual Paradigm Community Circle

Here is a work breakdown structure example.

Work Breakdown Structure (WBS) is a graph (a tree) of activities done during the project.  Each activity is broken down into tasks, until desired level of detail is reached. A task must contain work related only to their parent activity. The top-level activity (= project) must contain 100% of work in the project. For each node, the sum of work shares in its sub-activities must be 100% . A desired level of detail for tasks is usually the size of task that can be allocated to a single person