Collect requirements

Define scope

Create WBS

Verify scope

Control scope

• Decomposition— Subdivision of project deliverables into small, more manageable components until work and deliverables are defined to work package level.

• Work package— Lowest level of WBS; cost and schedule can be reliably estimated.

• Organizational breakdown structure (OBS)— Hierarchical breakdown of project organization to depict work packages by performing organizational unit.

• Resource breakdown structure (RBS)— Hierarchical, organized depiction of resources by type to be used.