标准号:BS ISO/IEC 8822-1994
中文标准名称:信息技术.开放式系统互联.演示式工作定义
英文标准名称:Information technology - Open systems interconnection - Presentation service definition
标准类型:L79
发布日期:1995/5/15 12:00:00
实施日期:1995/5/15 12:00:00
中国标准分类号:L79
国际标准分类号:35.100.60
适用范围:1 This ITU-T Recommendation | International Standard defines (in an abstract way) the externally visible service provided by the OSI Presentation Layer in terms of
a) the primitive actions and events at the user/service boundary;
b) the parameter data associated with each primitive action and event;
c) the relationship between, and the valid sequences of, those actions and events.
2 The service defined in this ITU-T Recommendation | International Standard is the connection-oriented service which is provided by the OSI connection-oriented presentation protocol and the the connectionless service which is provided by the OSI connectionless presentation protocol, each in conjunction with the OSI session-service.
The connection-oriented presentation service defined in this ITU-T Recommendation | International Standard may be used by an OSI application protocol defined for connection-oriented transmission. The connectionless presentation service defined in this ITU-T Recommendation | International Standard may be used by an OSI application protocol defined for connectionless transmission.
3 This ITU-T Recommendation | International Standard does not specify individual implementations or products, nor does it constrain the implementation of entities and interfaces within a computer system. There is, therefore, no conformance to this ITU-T Recommendation | International Standard.