Ben is the program manager for his organization. He's working with program team to determine what activities need to be completed in order to move the program into execution. He and the team are…

A work breakdown structure (WBS) is created by hierarchically decomposing the total scope of the program or project into smaller, manageable components called work packages. This decomposition process - subdividing scope - is the defining characteristic of WBS creation and is a foundational scope management technique that enables activity identification, estimating, and scheduling.

A program network diagram represents the sequencing and dependencies of activities, not the hierarchical decomposition of scope into components.

The program scope baseline is a formal approved document consisting of the scope statement, WBS, and WBS dictionary - it is a result of planning, not the act of decomposing scope.

The activity list is derived from the WBS work packages but is a separate artifact - a list of schedule activities, not the hierarchical decomposition structure itself.