syst - tact
- system
- system accuracy model
- system activity monitor
- system advisory notice
- system alignment procedure
- system alignment test
- system allocation document
- system analysis and battle management
- system analysis of manned space operations
- system analysis section
- system analysis study
- system and logistics
- system approach
- system approach to training
- system architecture development study
- system attack readiness test
- system avionics value estimation
- system burning time
- system calibration support plan
- system change notice
- system change proposal
- system change request
- system checkout automatic network simulator
- system checkout test set
- system communications
- system compatibility tests
- system compatibility vehicle
- system component test station
- system component verification
- system concept
- system control center
- system control number
- system control routine
- system control unit
- system coordination document
- system cost analysis model
- system cost and operational resource evaluation
- system decision paper
- system definition directive
- system definition requirement
