3D WBS method answers all the fundamental questions what, how, where, who, when, why and how much. More of that, it put in relationship all these questions.
WHATare we doing ?
We do Product (PBS, Product Breakdown Structure), like IT modules, civil works components, functional systems, equipment, deliverables, etc.
HOWare we doing Products?
We deploy Activities (ABS, Activity Breakdown Structure) on Products to produce them, like design, procurement, installation, etc.
WHEREare the Products assigned?
Products are assigned into a Zone (ZBS, Zone Breakdown Structure), like release, wave of prototype, process unit, geographical area.
WHOis doing the work?
Resources (RBS, Resource Breakdown Structure) which belong to an organization (OBS, Organization Breakdown Structure) do the work.
WHENis the work done?
Tasks (crossing between ZBS, PBS and ABS) are scheduled in the time.
WHYis the work done?
We do the project to obtain the Project/Product Value (ROI/NPV) required.
HOW MUCH is the cost of the project?
Resources (RBS) are assigned to tasks to calculate the cost of the project.
FOR WHAT is the work done?
We work to do Products (PBS) with the physico-functional characteristics required, and the quality level required.
FOR WHAT is the work done?
We work to do Products (PBS) with the physico-functional characteristics required, and the quality level required.