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Demonstration and Validation.
• Development Baseline, approved at Milestone II, is applied to the effort in
Phase II, Engineering and Manufacturing Development.
• Production Baseline, approved at Milestone III, is applied to the effort in
Phase III, Production and Deployment.
Each baseline must contain objectives for key cost, schedule, and performance
parameters. Objectives are accompanied by minimum requirements called
thresholds. Once signed by the milestone decision authority, APBs may only be
changed at subsequent milestone or program reviews, or with the approval of
the milestone decision authority as a response to an unrecoverable baseline
deviation.
Acquisition
Radar
Radar that searches a spatial volume and identifies potential targets from the
background and non-hostile objects.
Acquisition
Risk
The chance that some element of an acquisition program produces an
unintended result with an adverse effect on system effectiveness, suitability,
cost, or availability for deployment.
Acquisition/
Reacquisition
Time
The time required to establish or reestablish lock on the received signal. This
includes carrier, symbol, frame, code, and crypto synchronization.
Acquisition
Strategy
A business and technical management approach designed to achieve program
objectives within the resource constraints imposed. It is the framework for
planning, directing, and managing a program. It provides a master schedule for
research, development, test, production, fielding, and other activities essential
for program success, and, is the basis for formulating functional plans and
strategies (e.g., Test and Evaluation Master Plan, Acquisition Plan, competition,
prototyping, etc.).
Acquisition
Strategy Report
Describes the acquisition approach to include streamlining, sources, competition,
and contract types throughout the period from the beginning of Phase I,
Demonstration and Validation, through the end of production.
Acquisition
Streamlining
Any effort that results in more efficient and effective use of resources to develop
or produce quality systems. This includes ensuring that only necessary and costeffective
requirements are included, at the most appropriate time in the
acquisition cycle, in solicitations and resulting contracts for the design,
development, and production of new systems, or for modifications to existing
systems that involve redesign of systems or subsystems.
Acquisition,
Tracking and
Pointing (ATP)
The process of acquiring within a given field of view a target (or targets) and
maintaining a precision track of the same while enabling the pointing of a sensor
or weapon at the target so that it may be destroyed.
ACS (1) Airspace Control System. (2) Attitude Control System. (3) AEGIS Combat
System. (4) Assistant Chief of Staff.
MDA GLOSSARY, VER. 4.0 A
6
ACSIS AEGIS Combat System Interface Simulation.
ACSN Advance Change/Study Notice
ACTD Advanced Concept Technology Demonstration.
ACTE Analytical Communications Test Environment ATD.
ACTEX Advanced Controls Technology Experiment.
Active In surveillance, an adjective applied to actions or equipment, which emit energy
capable of being detected, e.g., radar is an active sensor.
Active Air
Defense
Direct defensive actions taken to nullify or reduce the effectiveness of hostile air
action. It includes such measures as the use of aircraft, air defense weapons,
weapons not used primarily in an air defense role and electronic warfare.
Active
Communications
Security Threat
Threats to an electronic system posed by a capability to disrupt communications
or to seize control or deny positive control of electronic systems to intended
users, e.g., jamming and imitative deception.
Active Defense (1) The employment of limited offensive action and counterattacks to deny a
contested area or position to the enemy. Also Passive Defense.
(2) In-flight intercept and destruction of ballistic missiles and negation of
their warheads.
Active Defense
(TBMD)
Active defense protects against theater missiles by destroying them in flight.
Engagement capability is required throughout all phases of the missile’s
trajectory (boost, post-boost, mid-course, and terminal) to prevent saturation of
point defense, to negate warhead effects, and to ensure minimal leakage in
defending critical assets. Therefore, active defenses must consist of defense in
depth to provide multiple engagement opportunities with differing technologies,
increasing the probability of kill, and countering the enemy’s counter-measure
　
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