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asset values, the number of arriving RVs and time to impact.
Selective Kill Assigns interceptors to targets on the basis of missile type, launch area, impact
area, time of launch/arrival, or predicted threat utility (e.g., SS-18 or its follow-on).
Selectivity Refers to choosing a subset of targets either for attack or defense. (See
Preferential Defense and Preferential Offense.)
SEMA Special Electronics Mission Aircraft.
Semi-Active
Homing
Guidance
A system of homing guidance wherein the receiver in a missile utilizes radiations
from a target, which has been illuminated by an outside source.
Semi-Active
Sensor
One that does not generate radiation itself, but that detects radiation reflected
by targets when they are illuminated by other BMD components. Such devices
are used for tracking and identification and can operate without revealing their
own locations.
SEMP Systems Engineering Management Plan.
SEMS System Engineering Management Schedule.
MDA GLOSSARY, VER. 4.0 S
262
Senior
Procurement
Executive (SPE)
The senior official responsible for management direction of the Service
procurement system, including implementation of unique procurement policies,
regulations, and standards. The Senior Procurement Executive for all non-
Service DoD Components is the Under Secretary of Defense for Acquisition and
Technology, who has delegated many of these functions to the Heads of
Defense Agencies including the Director, MDA.
SENSCOM Sentinel System Command.
Sensor Data Measurement information. For a passive sensor it is usually irradiance time, and
LOS. For an active sensor it may include range, Doppler, cross section, etc., as
well.
Sentinel ABM system designed for light area defense against a low-level ballistic missile
attack on the United States. Developed into the Safeguard system in late
1960's.
SEO Survivability Enhancement Option.
SEP Signal Entrance Panel.
Separation
Hardware
Objects expelled during payload separation sequence.
SEPG Software Engineering Process Group.
SEPRD System Element Production Readiness Demonstration.
SEQ Sequence, or Staff Equivalent.
Sequestration The reduction or cancellation of new budget authority; un-obligated balances,
new loan guarantee commitments or limitations; new direct loan obligations,
commitments, or limitations; spending authority; and obligation limitations. As
delineated in the Budget Enforcement Act of 1990, sequestration is necessary if
legislation is enacted that would cause spending in any appropriations category
to exceed a specified cap.
SERB Software Engineering Review Board.
SERD Support Equipment Recommendation Data (ILS term).
SERG System Engineering Review Group.
Service
Acquisition
Executive (SAE)
See definition of DoD Component Acquisition Executive.
Service BMD
Program
Executive Officer
(PEO)
A senior official responsible for execution of Service PMAs and for providing
guidance and Service-related direction to subordinate Program Managers. The
PEO will also serve as a deputy to the GM. (Consistent with PEO authorities and
responsibilities documented in DoDD 5000.1 and DoDI 5000.2.)
Service
Component
Command
A command consisting of the Service component commander and all those
individuals, units, detachments, organizations and installations under the
command that have been assigned to the unified command.
MDA GLOSSARY, VER. 4.0 S
263
Service Life
Extension
Program (SLEP)
Modification(s) to fielded systems undertaken to extend the life of the system
beyond what was previously planned.
Service Test A test of an item, system, or technique conducted under simulated or actual
operational conditions to determine whether the specific military requirements or
characteristics are satisfied.
SES Seeker Experimental System.
SESE Software Engineering Support Environment.
SET System Evaluation Threat.
SETA Scientific, Engineering, and Technical Assistance.
SETAC Systems Engineering and Technical Assistance Contractor.
SETP Solar Electric Aircraft Test Platform.
SEW Space Electronics Warfare.
SEWC Space and Electronic Warfare Coordinator.
SEWS Satellite Early Warning System.
SF Standard Form.
SFC Space Forecast Center.
SFS Shoot-Fail-Shoot.
SG (1) Steering Group
(2) Silicon Graphics
SGEMP System/Source Generated Electromagnetic Pulse.
SGLS Space/Ground Link Subsystem.
SHAPE Supreme Headquarters Allied Powers Europe.
SHF Super High Frequency.
SHIELD (1) System High Energy Laser Demonstration.
(2) Silicon Hybrid Extrinsic Long-Wavelength Detection.
　
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