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independent operational test activity, with user support as required, on other
than production systems. The focus of an operational assessment is on
significant trends noted in development efforts, programmatic voids, areas of risk,
adequacy of requirements, and the ability of the program to support adequate
operational testing. Operational assessments may be made at any time using
technology demonstrators, prototypes, mockups, engineering development
models, or simulations but will not substitute for the independent operational test
and evaluation necessary to support full production decisions.
Operational
Availability
The degree, expressed in terms of 1.0 as the highest, to which one can expect
equipment or weapon systems to work properly when required. The equation is
uptime over uptime plus downtime, expressed as Ao. It is the quantitative link
between readiness objectives and supportability.
Operational
Concept
An end-to-end stream of activities that defines how force elements, systems,
organizations, and tactics combined to accomplish a military task.
Operational
Control (OPCON)
Transferable command authority that may be exercised by commanders at any
echelon at or below the level of combatant command. Operational control is
inherent in Combatant Command (command authority) and is the authority to
perform those functions of command over subordinate forces involving
organizing and employing commands and forces, assigning tasks, designating
objectives, and giving authoritative direction necessary to accomplish missions
assigned to the command. Operational control should be exercised through the
commanders of subordinate organizations; normally this authority is exercised
through the Service component commanders. Operational control normally
provides full authority to organize commands and forces and to employ those
forces, as the commander in operational control considers necessary to
accomplish assigned missions. Operational control does not, in and of itself,
include authoritative direction for logistics or matters of administration, discipline,
internal organization, or unit training.
Operational
Effectiveness
The overall degree of mission accomplishment of a system when used by
representative personnel in the environment planned or expected (e.g., natural,
electronic, threat, etc.) for operational employment of the system considering
organization, doctrine, tactics, survivability, vulnerability, and threat (including
countermeasures, initial nuclear weapons effects, nuclear, biological, and
chemical contamination (NBCC) threats).
Operational
Evaluation
The test and analysis of a specific end item or system, insofar as practicable
under Service operating conditions, in order to determine if quantity production is
warranted considering: a) the increase in military effectiveness to be gained;
and b) its effectiveness as compared with currently available items or systems,
consideration being given to: (1) personnel capabilities to maintain and operate
the equipment; (2) size, weight, and location considerations; and (3) enemy
capabilities in the field.
Operational
Level of War
The level of war at which campaigns and major operations are planned,
conducted, and sustained to accomplish strategic objectives within theaters or
areas of operations. Activities at this level link tactics and strategy by
establishing operational objectives needed to accomplish the strategic
objectives, sequencing events to achieve the operational objectives, initiating
actions, and applying resources to bring about and sustain these events. These
activities imply a broader dimension of time or space than do tactics; they ensure
the logistic and administrative support of tactical forces, and provide a means by
which tactical successes are exploited to achieve strategic objectives.
MDA GLOSSARY, VER. 4.0 O
212
Operational Mode The configuration of the defense system element or segment. Refers to the
operational environment of system, i.e., test configuration or training
configuration.
Operational
Readiness
The capability of a unit/formation, ship, weapon system or equipment to perform
the missions or functions for which it is organized or designed. May be used in
a general sense or to express a level or degree of readiness.
Operational
Reliability
The reliability of a system or software subsystem in its actual use environment.
Operational reliability may differ considerably from reliability in the nonoperational
or test environment.
Operational
Requirement
Navy document, which describes major characteristics of the alternative selected
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