Technologies de l'information — Interconnexion de systèmes ouverts (OSI) — Définition du service de présentation

Defines in an abstract way the externally visible service provided by the OSI presentation layer in terms of the primitive actions and events at the user/service boundary, the parameter data associated with each primitive action and event, the relationship between, and the valid sequences of, those actions and events. The service defined is the connection-oriented service which is provided by the OSI connection-oriented presentation protocol and the connectionless service which is provided by the OSI connectionless presentation protocol, each in conjunction with the OSI session service.