Program Evaluation Review Technique (PERT) is one of the schedule control and management tools for the planning and evaluating progress of complex projects. A PERT shows graphical relations among activities, and time scale of each activity, and required total duration of the project that is to determine the time required to complete each element in terms of pessimistic, optimistic, and best guess estimates. A PERT was developed by US Navy in the 1950s.

Related Definitions in the Project: The Project Schedule