CSA Group Information Technology - Open Systems Interconnection - Session Service Definition (Adopted ISO/IEC 8326:1996, second edition, 1996-09-15)

Technical corrigenda #1 to this standard is available. Scope This Recommendation | International Standard defines in an abstract way the externally visible service provided by the OS1 Session Layer in terms of:  a) the primitive actions and events of the service b) the parameter data associated with each primitive action and event c) the relationship between, and the valid sequence of these actions and events.  The service defined in this Recommendation | International Standard is that which is provided by the OS1 session protocol (in conjunction with the transport service) and which may be used by the OS1 presentation protocol.  This 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 Recommendation | International Standard.  The text pertaining to the symmetric synchronization functional unit is not applicable to the support of ITU-T applications.