Organization Breakdown Structure (OBS)

The OBS is compiled of details amassed and ordered in the same way as the details of the WBS. A defined, carefully monitored regularly updated OBS facilitates the ready identification, at every level of project management, of different levels and kinds of respon­sibilities within the project to facilitate communication between various parts of a project and enable to keep their responsibilities and lines of authority well-defined, the OBS and its updates should be communicated to everyone working in the project.

The project manager along with other members of the manage­ment group for the project are expected to keep close tabs on the OBS and any amendments of its content.