1. Identify and analyze deliverables and related work
2. Determine the structure and arrangement method of WBS
3. Refined and decomposed layer by layer from top to bottom.
4. Customize and assign identification codes to WBS components
5. Verify whether the degree of decomposition of deliverables is appropriate
①If you adopt agile methods, you can break down long stories into user stories
②Different deliverables can be decomposed into different levels
④ Deliverable components that are completed in the future may not be decomposed (planning packages) currently and require rolling rules
One hundred percent principle
Principle of clear responsibilities