[The] property whereby the security level of an object cannot change while the object is being processed by an information system (IS). [INFOSEC-99]

A unit of work consisting of an arbitrary number of individual operations all of which will either complete successfully or abort with no effect on the intended resources. A transaction has well defined boundaries. A transaction starts with a request from the application program and either completes successfully (commits) or has no effect (abort). Both the commit and abort signify… (Read More →)

A program written to meet the requirements of a chosen Transaction Processing (TP) application [POSIX.0]. Such programs allow a sequence of operations that involve resources such as terminals and databases. The transaction application process specifies transaction boundaries. The transaction application process as defined here is a logical entity and may involve an arbitrary number of processes.

1. A means based upon the OSI-Reference Model to support applications in telecommunications networks. [T1.667-1999]
2. Protocol functions and procedures that control non-circuit related information exchange among signaling points in SS7 networks. It provides a general purpose approach to the introduction of new services within a network as well as a framework for service architecture for providing internetwork services. Transaction… (Read More →)

The degree to which a transaction flowing through a network reaches its intended destination without impairment of its function, content or meaning. [After X9.19]

Applications that exchange messages that are time-critical, bursty, and often limited in length, to perform an indivisible or elemental unit of work for OAM&P (operations, administration, maintenance, and provisioning) applications. [After T1.210-1993]

1. A device that performs, within one chassis, both transmitting and receiving functions.
2. In military communications, the combination of transmitting and receiving equipment that (a) is in a common housing, (b) usually is designed for portable or mobile use, (c) uses common circuit components for both transmitting and receiving, and (d) provides half-duplex operation.

The direct digital-to-digital conversion from one encoding scheme, such as voice LPC-10, to a different encoding scheme without returning the signals to analog form.
Note: The transcoded signals, i.e., the digital representations of analog signals may be any digital representation of any analog signal, such as voice, facsimile, or quasi-analog signals.

1. The factor by which the bit rate of a 64-kb/s channel is reduced when transcoding is used, e.g., when a transcoder conforming to ANSI T1.303 (i.e., ADPCM 32-kb/s) is used, the transcoding gain will equal
2. Transcoding gain equals 1 when no transcoding is used. [T1.309-1990]

A device for converting energy from one form to another for the purpose of measurement of a physical quantity or for information transfer.