Understanding the organizational breakdown structure hierarchy

The organizational breakdown structure (OBS) describes the organizational structure and how the organizations relate to each other. It is necessary for the successful integration of a project's scope, schedule, and budget. Individuals are assigned to work on program tasks according to a function, for example, engineering design or information services. Individuals within these groups can be assigned to support different programs but they remain part of the functional organization. The OBS elements are assigned to specific WBS work packages to ensure that all personnel responsible for planning, managing, and controlling the project are identified.