ANSI/NISO Z39.50-1992 ISSN: 1041-5653 (Revision of ANSI/NISO Z39.50-1988)
For terms that are formally defined in other standards, the formal definition is given, italicized, and the standard is listed in parentheses. In those cases, descriptions and/or alternate definitions (indented) are sometimes provided. All of the definitions below including the alternate definitions apply only to the Information Retrieval application service and protocol, and only within the context of this standard.
APDU--See Application Protocol Data Unit.
Application Association--A cooperative relationship between two application-entity-invocations for the purpose of communication of information and coordination of their joint operation. This relationship is formed by the exchange of application-protocol-control-information using the Presentation-Service. (ISO 9545)
Application Protocol--The rules governing the format and exchange of information between an origin and target application.
Application Protocol Control Information--The information conveyed by application protocol data units.
Application Protocol Data Unit-- A unit of data specified in an application-protocol and consisting of application-protocol-information and possibly application-user-data. (ISO 7498)
ASN.1--Abstract Syntax Notation One.
Conditionally Confirmed Service--A confirmed service in which the response might under certain conditions not occur.
Confirmed Service--A distinct part of the total IR-service that results in an explicit confirmation from the service-provider to the initiating service-user. (ISO TR 8509)
Database Provider--The application that provides access to a database local to that application.
Database User--The application that accesses a remote database.
Origin Application--The application that initiates an association and is the source of requests during the association. The database user.
Name--A linguistic construct, expressed in some language, that corresponds to an object. A name denotes (i.e. identifies) the object to which it is bound.
Non-Confirmed Service--A distinct part of the total IR-service which does not result in an explicit confirmation from the service-provider to the initiating service-user. (ISO TR 8509)
Primitive--An abstract, implementation-independent representation of an interaction between the service-user and the service-provider. (ISO TR 8509)
Primitive Name--A kind of name, the internal structure of which is not required to be understood or to have significance to users of the name.
Result set--An ordered list of triples consisting of (a) an ordinal number corresponding to the position of the triple in the list, (b) a database name, and (c) a unique record identifier (of local significance only) within the database named in (b). A result set is formed by applying a search query.
RPN--Reverse Polish Notation
Service Provider--An abstract of the totality of those entities that provide a service to peer service-users. (ISO TR 8509)