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Trusted
Computer
System/Software
A system or its software that employs sufficient hardware and software integrity
measures to allow its use for processing sensitive or classified information.
Trusted Path A mechanism by which a person at a terminal can communicate directly with the
Trusted Computing Base. This mechanism can only be activated by the person
of the Trusted Computing Base and cannot be imitated by un-trusted software.
TRW TRW, Inc.
TS (1) Terminal Service. (2) Top Secret.
MDA GLOSSARY, VER. 4.0 T
307
TSA Technology Security Analysis.
TSD Tactical Surveillance Demonstration.
TSCM Tomahawk Strike Coordination Module (USN term).
TSD Tactical Surveillance Demonstration.
TSDE Tactical Surveillance Demonstration Enhancement.
TSEU Technology Seeker Evaluation Unit.
TsIAM Moscow’s Central Institute of Aviation Motors.
TSM TRADOC System Manager.
TSMA Theater of Strategic Military Action.
TSP Target Support Plan.
TSPI Time, Space, Position Information.
TSR Target System Requirements.
TSRD Target System Requirements Document.
TSS Terminal Surveillance Sensor.
TSSAM Tri-Service Standoff Attack Missile.
TSWG Target Signature Working Group.
TT Total Time.
TT&C Telemetry, Tracking and Command.
TT&E Technical Test and Evaluation (Army).
TTA Total Time Accounting.
TTBM Terminal Tier Battle Manager.
TTBT Threshold Test Ban Treaty.
TTD&D Test Technology Development and Demonstration. A portion of the CTEIP
program, which funds the development and demonstration of technologies,
which have significant potential for improving testing.
TTEL Tools and Test Equipment List (ILS term).
TTL Transistor-to-Transistor Logic.
TTP Tactics, Techniques, and Procedures.
TTSARB Technology Transfer and Security Assistance Review Board.
TTT Test Technology Transfer.
MDA GLOSSARY, VER. 4.0 T
308
TTV Technology Test Vehicle.
TTY Teletype.
TUG TRACE User Group.
TV Thrust Vectoring (rocker engineering term).
TVC Thrust Vector Control.
TVE Technology Validation Experiment.
TVM Track-via-Missile.
TVV Technology Validation Experiment.
TW Tactical Warning.
TW/AA See Tactical Warning/Attack Assessment.
TW/SD Tactical Warning and Space Defense.
TWG Technical Working Group.
TWS TOMAHAWK Weapons System (USN term).
TWT Traveling Wave Tube.
TWTA Traveling Wave Tube Amplifier. (Electronic Engineering term).
TY Then Year (PPBS term).
TY$M Then Year Dollars Millions.
Type A - System
Specification
States all necessary requirements in terms of performance, including test
provisions to assure that all requirements are achieved. Essential physical
constraints are included. Type A specifications state the technical and mission
requirements of the system as an entity.
Type B -
Development
Specification
States all necessary requirements in terms of performance. Essential physical
constraints are included. Type B specifications state requirements for the
development of items other than systems. They specify all of the required item
functional characteristics and the tests required to demonstrate achievement of
those characteristics.
Type C - Product
Specification
Product specifications are applicable to any item below the system level, and
may be oriented toward procurement of a product through specification of
primarily function (performance) requirements or fabrication (detailed design)
requirements. Type C specifications intended to be used for the procurement of
items including computer programs.
Typhoon Class of Soviet ballistic missile submarines.
Typing The act of recognizing objects by measuring a set of observables, computing a
set of characteristics, and associating the characteristics with a specific class of
objects (i.e., SS-18, SS-24).
MDA GLOSSARY, VER. 4.0 U
309
U Uranium.
U&S Unified and Specified [commands] (pre-1996 term).
U.K (UK) United Kingdom.
U.S. (US) United States.
U.S. West U.S. West Incorporated.
U.S.S.R. Union of Soviet Socialist Republics.
UA User Assessment (NMD BMC3 term).
UAE United Arab Emirates.
UAV Unmanned Aerial Vehicle.
UAV BPI Unmanned Aerial Vehicle-based Boost Phase Intercept.
UCAP UAV Combat Air Patrol.
UCC Uniform Commercial Code (US legal term).
UCP Unified Command Plan.
UD/ASD United Defense/Armaments Systems Division.
UDMH Unsymmetrical Dimethylhydrazine (a liquid propellant rocket fuel).
UDS Universal Documentation System. A standardized comprehensive tool for stating
and coordinating program requirements for testing MRTFB ranges, as well as the
　
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