ISO/IEC 9804:1998

commitment, concurrency and recovery is required. It can be referenced whenever the processing of two or more

application-entity invocations in a distributed application needs to be organized into an atomic action.

This Recommendation | International Standard defines services that are used on a single association to coordinate two

application-entity invocations involved in an atomic action. The determination of which application-entity invocations

are involved in an atomic action is not within the scope of this Recommendation | International Standard.

This Recommendation | International Standard establishes the general principles for the coordinated use of the CCR

services when more than two application-entity invocations are involved in a single atomic action, or when recovery is

required after failure. The coordination of multiple associations and the related application-entity invocations that

constitute an atomic action is achieved by a referencing specification in conjunction with this Recommendation |

International Standard.

This Recommendation | International Standard is only applicable to a distributed application whose specification

references this Recommendation | International Standard.

This Recommendation | International Standard does not specify individual implementations or products. It does not

constrain the implementation of entities and interfaces within a computer system.

No requirement is made for conformance to this Recommendation | International Standard.

This Recommendation | International Standard includes requirements for compliance that apply to a referencing

specification.

The CCR service defined in this Recommendation | International Standard requires that CCR Protocol Version 2 (or a

later version) is being used.