Off the ShelfProcurement of existing system or equipment without an RDT&E program or with minor development to make the system suitable for DoD needs.
off-axis optical systemAn optical system in which the optical axis of the aperture is not coincident with the mechanical center of the aperture.
Off-CardRefers to data that is not stored within the PIV card or computation that is not done by the Integrated Circuit Chip (ICC) of the PIV card.
off-hookIn telephony, the condition that exists when an operational telephone instrument or other user instrument is in use, i.e., during dialing or communicating.
off-hook signalIn telephony, of a circuit, a signal indicating seizure, request for service, or a busy condition.
off-linePertaining to the operation of a functional unit when not under the direct control of the system with which it is associated.
Off-line AttackAn attack where the attacker obtains some data (typically by eavesdropping on an authentication protocol run, or by penetrating a system and stealing…
off-line authentication certificateA particular form of authentication information binding an entity to a cryptographic key, certified by a trusted authority, which may be used for…
off-line cryptosystem[A] cryptosystem in which encryption and decryption are performed independently of the transmission and reception functions. [INFOSEC-99]
off-line data replication.Data replication by storing data off-line, usually a backup tape or disk stored in a safe location; this method is best for applications that can accept a…
off-line recoveryThe process of recovering nonprotected message traffic by use of an off-line processor or central processing unit.
Off-Line StorageElectronic records stored or archived on removable disc (optical, compact, etc.
off-net callingThe process by which telephone calls that originate or pass through private switching systems in transmission networks are extended to stations in a…
off-premises extension (OPX)An extension telephone, PBX station, or key system station located on property that is not contiguous with that on which the main telephone, PBX, or key…
off-the-airIn radio communications systems, pertaining to a station that is completely shut down, i.e.
off-the-air monitoringIn radio net operations, the listening, by the net-control station, to the transmissions of stations in the net, particularly to check the quality of…
Off-the-Shelf ItemAn existing item, system, or equipment, determined by a material acquisition decision process review ( DoD , Military Component, or subordinate…
Offense/Defense CoordinationThe coordination of the strategic defense system operations with unified/specified strategic offense commands to achieve overall U.S.
Offensive content filterAn offensive content filter detects offensive content (sexual, drugs, violence) in a document and can tag the document to be offensive and based on that…
Offensive Counter Air OperationAn operation mounted to destroy, disrupt, or limit enemy air power as close to its source as possible.
offered loadThe total load submitted to a trunk group. This value may be corrected for retrials during the engineering process. [T1.Rpt 11-1991]
office classificationPrior to divestiture, numbers that were assigned to offices according to their hierarchical function in the U.S. public switched telephone network.
office of origindepartment or other organizational unit that creates or originally receives a record Also referred to as author, originating department, and originator.
office of recordAn office designated to maintain the record or official copy of a particular record in an organization
official copyA document possessing public record status, created or received by a state officer or state employee, while conducting state business and serving state…
official recordthe same as public record (q.v.) as construed in Tennessee Code Annotated §10-7-301.
OfflineWhen computers and other devices are not connected to the network.
offline address booksContain the recipient objects found in any Recipients container in the directory. [Exchange 5.5]
offline address listA collection of address lists available to Exchange Server 2003 users either when they are working offline, or when they are working remotely over a…
offsetYou offset an options or futures position by taking a second position in a contract with identical terms, buying if you sold initially or selling if you…
offset encryptionThe process of encryption by using a key that has been offset. [After X9.28]
offset trackIn information assurance, a track written at a nonstandard position on a diskette, as part of a method of copy protection. [2382-pt.8]
offsite storageA potentially secure location, remote from the primary location, at which inactive or vital records are stored See also onsite storage.
OFNAbbreviation for optical fiber, nonconductive. Note: OFN is the designation given by the National Fire Protection Association (NFPA) to interior…
OFNPAbbreviation for optical fiber, nonconductive, plenum. Note: OFNP is the designation given by the National Fire Protection Association (NFPA) to interior…
OFNRAbbreviation for optical fiber, nonconductive, riser. Note: OFNR is the designation given by the National Fire Protection Association (NFPA) to interior…
OGSA (Open Grid Services Architecture)The Open Grid Services Architecture is a standard setting the base for communication in grids across virtual organizations.
OLEObject Linking and Embedding. A feature in Microsofts Windows which allows each section of a compound document to call up its own editing tools or special…
OLE DBSee definition for: Object Linking and Embedding Data Base
OMNCSOffice of the Manager, National Communications System.
omnidirectional antennaAn antenna that has a radiation pattern that is nondirectional in azimuth. Note: The vertical radiation pattern may be of any shape.
omnidirectional range stationA radionavigation land station in the aeronautical radionavigation service providing direct indication of the bearing (omnibearing) of that station from…
OMSCWGOperational Message Space Command Working Group.
on demandOne of the primary advantages of using the cloud is the ability to access resources as you need them, including processing power, of memory, network…
On Demand BusinessIBM marketing term that denotes a company whose business processes - integrated end-to-end across the company and with key partners, suppliers and…
on-board communication stationA low-powered mobile station in the maritime mobile service intended for use for internal communications on board a ship, or between a ship and its…
On-CardRefers to data that is stored within the PIV card or computation that is done by the ICC of the PIV card.
on-demand computingproviding computing resources to meet business demands on an as needed basis.
on-demand instanceAn Amazon EC2 pricing option that charges you for compute capacity by the hour with no long-term commitment.
on-demand streamA previously recorded media stream that users can request at a time most convenient to them. Users can rewind and fast-forward on-demand media streams.
on-hookIn telephony, the condition that exists when an operational telephone, or other user instrument, is not in use.
on-hook signalIn telephony, of a circuit, a signal indicating a disconnect, unanswered call, or an idle condition.
on-hook stateA state in which the customer installation (CI) presents a high-resistance path at the network interface. [T1.Rpt37-1994]
On-LineA unit that is operational, not dormant, but is not participating with on-going functions.
On-line AttackAn attack against an authentication protocol where the attacker either assumes the role of a claimant with a genuine verifier or actively alters the…
on-line authentication certificateA particular form of authentication information, certified by a trusted authority, which may be used for authentication following direct interaction with…
on-line cryptosystem[A] cryptosystem in which encryption and decryption are performed in association with the transmitting and receiving functions. [INFOSEC-99]
on-line data replicationData replication by copying to another location that is immediately accessible.
on-premises extensionAn extension telephone, PBX station, or key system station located on property that is contiguous with that on which the main telephone, PBX, or key…
on-premises wiringCustomer-owned metallic or optical-fiber communications transmission lines, installed within or between buildings.
on-screen buttonA pictorial representation of a pushbutton on a display screen, which functions as a binary control, for example, on/off. [T1.232-1996]
on-the-airIn radio communications systems, pertaining to a station that is transmitting a carrier, whether or not the carrier is modulated. 2.
On-themerefers to content specific to a particular topic
one-linerAn entire computer program crammed into one line of text.
one-part codeCode in which plain text elements and their accompanying code groups are arranged in alphabetical, numerical, or other systematic order, so one listing…
one-time pad1. [ A] manual one-time cryptosystem produced in pad form. [INFOSEC-99] 2. The one time pad is the ONLY encryption scheme that can be proven to be…
One-to-manyA relate in which one record in a table is related to many records in another table.
one-to-many-relateA type of relate connecting a unique value in one file to many records (that have the same value) in another file.