Review Technique. He explained: For the subdivision of work units in PERT another tool was developed: the Work Breakdown Structure. The Work Breakdown Structure provides "a framework for complete networking, the Work Breakdown Structure was formally introduced as the first item of analysis in carrying out basic PERT/COST." Renamed the Strategic Systems Project Office Due to changing interests in the naval programs, in 1968, the Special Projects Office was renamed the Strategic Systems Project Office and its tasks had been extended. Selected publications U.S. Dept. of the Navy. Program Evaluation Research Task, Summary Report, Phase 1. Washington, D.C., Government Printing Office, 1958. U.S. Dept. of the Navy. Program Evaluation Research Task, Summary Report, Phase 2. Washington, D.C., Government Printing Office, 1958. United States. Polaris management, Fleet ballistic missile program. Washington, D.C. : U.S. Govt. Print. Off., 1962. References Bibliography Norman Polmar. Cold War Submarines, The Design and Construction of US and Soviet Submarines. More KJ. Potomac Books, Inc., 2003. . Graham Spinardi. From Polaris Trident: the development of US Fleet ballistic missile technology. Cambridge [England]: Cambridge University Press, 1994. . Norman Friedman, James L. Christley. US Submarines Since 1945: An Illustrated Design History. Naval Institute Press. . External links United States Navy organization