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DS-3 LAN Category of telecommunications circuit for a Local Area Network.
DSAA Defense Security Assistance Agency (OSD).
DSAT Defense Satellite Weapon.
DSB Defense Science Board.
DSCS Defense Satellite Communications Systems.
DSCS-3 Defense Satellite Communications System Three.
DSCSOC Defense Satellite Communications System Ops Center.
DSI Defense Simulation Internet
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85
DSIS (1) Defense Special Intelligence System. (2) Defense Simulation Internet
System.
DSM Decision Support Matrix
DSMAC Digital Scene-Matching Area Correlation.
DSMC Defense Systems Management College.
DSN (1) Defense Switched Network (formerly AUTOVON).
(2) Deep Space Network (NASA term).
DSP (1) Defense Support Program. (2) Defense Standardization Program.
DSPRTM Defense Support Program Real-Time Model.
DSR Data Set Ready (TelComm/Computer term).
DSRCE Down Scooped Radio Control Equipment (TelComms term).
DSS (1) Defense Supply Service. (2) Digital Signature Standard.
DST Defense Suppression Threat.
DSTAR Defense Strategic and Tactical Array Reproducibility.
DSTO Defence Science Technology Organization (Australia).
DSU Digital Service Unit (Telecomm/Computer term).
DSWA Defense Special Weapons Agency, Alexandria, VA. DSWA is the successor to
the DNA.
DT (1) Discrimination Technique.
(2) Development Testing.
(3) See Development Test I, II, III.
(4) Down Time (ILS term).
(5) Depressed Trajectory.
(6) Dedicated Target.
DT&E Development Test and Evaluation.
DT/OA Development Test/Operational Assessment.
DT/OT Developmental Test/Operational Test.
DTAP Defense Technology Area Plan.
DTC Design-to-Cost.
DTD Digital Transfer Device (TelComm/Computer term).
DTE Data Terminal Equipment (TelComm/Computer term).
DTED Digital Terrain Elevation Data.
DTIC Defense Technical Information Center, Alexandria, VA.
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DTIS Defense Technical Information Services (now DEIS).
DTLCC Design to Life-Cycle Cost.
DTLOMS Doctrine, Training, Leadership, Organization, Material, and Soldiers (USA BCBL
term).
DTLS Descriptive Top-Level Specification.
DTMF Data Tone Multiple Frequency (TelComm/Computer term).
DTO Defense Technology Objectives.
DTOC Division Tactical Operations Center.
DTR (1) Demonstration Test Round. (2) Development Test Round.
DTRM Dual Thrust Rocket Motor.
DTSA Defense Technology Security Administration.
DTSE&E Director, Test Systems Engineering and Evaluation.
DTST Defensive Technologies Study Team.
DTT Design-To Threat
DTWT Dual Traveling Wave Tube (Electronics Engineering term).
DU Depleted Uranium.
DUA Design Upgrade Assessment.
Dual Source Two contractors producing the same components or end items for the same
program.
DUNDEE Down Under Early Warning Experiment (MDA/DSTO term).
DURIP Defense University Research Instrumentation Program.
DUSD Deputy Under Secretary of Defense.
DUSD (ES) Deputy Under Secretary of Defense (Environmental Security).
DVAL Demonstration Validation.
DX The highest rating under the DPAS. It takes preference over all other rated and
not rated orders on a contractor’s production line. The BMD program carries a
“DX” rating.
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87
E East
E2I See Endo-Exoatmospheric Interceptor.
E2SRD Effectively Two-System Requirement Document.
E3 (1) Electromagnetic Environmental Effects.
(2) Electrical, Electronic, and Electromechanical.
E Spec Materiel Specification.
EA (1) Environmental Assessment.
(2) Engagement Authorization.
(3) Executing Agent.
(4) Evolutionary Acquisition.
(5) Environmental Analysis (environmental term).
(6) Executive Agent.
EAC Estimated Cost at Completion.
EAD (1) Engineering Analysis and Design. (2) Extended air defense.
EAD/D Engineering, Analysis, Design and Development.
EADSIM Extended Air Defense Simulation.
EADTB Extended Air Defense Test Bed. An object-oriented simulation tool allowing
users to model military response to airborne and ballistic missile threats.
EADTBP Extended Air Defense Test Bed Program.
EAGLE Extended Airborne Global Launch Evaluator.
EAM Emergency Action Message.
EAR Export Administration Regulations.
Early Operational
Assessment
An operational assessment conducted prior to, or in support of, Milestone II.
Early User Test
(EUT)
A test employing representative users to examine materiel concepts, training or
logistics planning, or inter-operability issues. EUT can be accomplished during
DEM/VAL on brassboard configurations, experimental prototypes, or surrogates
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