About WBS Summary Activities

A WBS summary activity type represents a group of activities that share a common work breakdown structure (WBS) level. The summary-level WBS activity enables the aggregation of dates for the activity group. Aggregate values for a WBS summary activity are calculated when the project is scheduled. The duration of a WBS summary activity extends from the start of the earliest activity in a group to the finish of the latest activity.

The WBS summary activity type combines the aggregation capabilities of the WBS structure with task-level attributes such as relationships, resource assignments, and notebooks. Use this activity type to aggregate dates, duration, and percent complete values for a group of activities that share a common WBS code.

The WBS code of a WBS summary activity determines which activities comprise the group. For example, a WBS summary activity assigned to WBS code A, would aggregate values for all activities under any subordinate WBS that relates to code A: A.1, A.1.1, A.2, A.2.1, and so on. If the WBS summary activity in this case were assigned to WBS code A.1, it would aggregate values for activities under WBS A.1 and A.1.1, but not for those activities under A.2 or A.2.1.



Last Published Wednesday, July 10, 2024