Create WBS is a process in the project scope management knowledge area and the planning process group. WBS stands for work breakdown structure. Basically this is the process where the activities that need to happen for the project to succeed are identified and broken into manageable sized steps.

Related: WBS, plan scope management, work package

According to the PMBOK, this activity has the following characteristics:

Inputs Tools and Templates Outputs
scope management plan, project scope statement, requirements documentation, enterprise environmental factors, organizational process assets decomposition, expert judgment scope baseline° (project scope statement, WBS, WBS dictionary), project documents updates

° The outputs are listed by PMI as the scope baseline and project documents updates. The scope baseline is comprised by the project scope statement, WBS (work breakdown structure), and the WBS dictionary. As a baseline, the scope baseline requires signatures or formal approval, and it is managed under change control. The project documents updates might include the Gantt chart.