Definition: (DOD) A general term of reference to those organizations directed by individual managers, exercising authority over the planning, direction, and control of tasks and associated functions essential for support of designated weapons or equipment systems. The authority vested in this organization may include such functions as research, development, procurement, production, materiel distribution, and logistic support, when so assigned. When intended to relate to a specific system manager, this term will be preceded by the appropriate designation (e.g., Chinook System Manager, Sonar System Manager, F-4 System Manager). This term will normally be used in lieu of system support manager, weapon system manager, program manager, and project manager when such organizations perform these functions.

