How PERT was used in managing the X-20 (Dyna-Soar) program

This paper describes how the Program Evaluation Review Technique (PERT) was developed in the X-20 program and how it was used in managing that program. The X-20 System Program Office (SPO), Aeronautical Systems Division (ASD), organized and directed the overall X-20 PERT effort of both Government and industry participants and employed a system of discrete detailed networks which collectively covered the entire program. The data from these “reporting” networks was computer integrated into a total program PERT output.