A network (sub)address (from a telephone user perspective) such as the telephone number in the telecommunication network. For the purpose of this configuration management model, the directory number is described in a managed object that contains references to other objects or attributes related to the services of subscribers. For service providers, the directory number is the key element used to… (Read More →)

A unit consisting of a DSA (directory system agent) and possibly other application processes (such as registration management) to provide the directory service with additional features such as automatic registration of a network element in a directory information tree (DIT). [After T1.245-1997]

The software that provides the X.500 directory service for a portion of the directory information base.
Note: Generally, each DSA is responsible for the directory information for a single organization or organizational unit. [Bahorsky]

The software that accesses the X.500 directory service on behalf of the directory user.
Note: The directory user may be a person or another software element. [Bahorsky]

When applied to privilege: a privilege that is inactive, i.e., has its effective flag cleared [POSIX.6].

A tone, transmitted over a communications path, used to control equipment.
Note: An example of a disabling tone is a tone that places an echo suppressor in a nonoperative condition during data transmission over a telephone circuit.

Synonym contingency plan.

Abbreviation for disconnect command.

See diskette.

Development of a system or part of a system where the documentation and evidence of testing against the documentation is to normal industry standards. See also: Rigorous, Structured Development, Verified Development [CESG].