Function Breakdown Structure (WBS): The center of the project in SAP. It's a hierarchical product of all of the responsibilities and deliverables necessary to accomplish a project. Every single node in this construction is a WBS Aspect, which acts for a bucket to gather expenses, program assets, and observe revenues. https://medium.com/@ecomgroup11/what-is-an-sap-training-provider-b86d4a0d147f