ISO/IEC 10026-3:1998 情報技術—オープンシステム相互接続—分散トランザクション処理—パート3：プロトコル仕様 | ページ 2

Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.

In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote.

International Standard ISO/IEC 10026-3 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 21, Open systems interconnection, data management and open distributed processing.

This third edition is a technical revision of the second edition (ISO/IEC 10026-3:1996).

This part of ISO/IEC 10026 is technically aligned with ITU-T Recommendation X.862, but is not published as identical text.

ISO/IEC 10026 consists of the following parts, under the general title Information technology - Open Systems Interconnection - Distributed Transaction Processing:

• Part 1: OSI TP Model
• Part 2: OSI TP Service
• Part 3: Protocol specification
• Part 4: Protocol Implementation Conformance Statement (PICS) proforma (aligned to second edition)
• Part 5: Application context proforma and guidelines when using OSI TP
• Part 6: Unstructured Data Transfer

Annexes A and B form an integral part of this part of ISO/IEC 10026. Annexes C to G are for information only.

Introduction

ISO/IEC 10026, Distributed Transaction Processing (OSI TP), is one of a set of standards produced to facilitate the interconnection of computer systems. It is related to other International Standards in the set as defined by the Reference Model for Open Systems Interconnection (ISO 7498). The Reference Model subdivides the area of standardization for interconnection into a series of layers of specification, each of manageable size.

The aim of Open Systems Interconnection (OSI) is to allow, with a minimum of technical agreement outside the interconnection standards, the interconnection of computer systems:

• a) from different manufacturers;
• b) under different management;
• c) of different levels of complexity; and
• d) of different technologies.

ISO/IEC 10026 defines an OSI TP Model, an OSI TP Service and specifies an OSI TP Protocol available within the Application Layer of the OSI Reference Model.

The OSI TP Service is an Application Layer service. It is concerned with identifiable information which can be related as distributed transactions, which involve two or more Open Systems.

ISO/IEC 10026 provides sufficient facilities to support transaction processing, and establishes a framework for coordination across multiple TP resources in separate open systems.

ISO/IEC 10026 does not specify the interface to local resources, nor does it specify an application programming interface within the local system.

1 Scope

This part of ISO/IEC 10026 provides

• a) a statement (clauses 6 to 11) of the nature of the automaton giving the necessary behaviour of each of the participating entities which are providing the OSI TP Service, covering
  • 1) the actions to be taken on receiving request and response primitives issued by a TP Service user invocation;
  • 2) the actions to be taken on receiving indication and confirm primitives issued by the presentation service-provider;
  • 3) the actions to be taken as a result of certain events within the local system;
  • 4) the actions to be taken as a result of interactions with other ASEs;

• b) the definition (clause 12) of the abstract syntax required to convey the TP protocol control information;

• c) the conformance requirements to be met by implementations of this protocol (clause 13).

2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO/IEC 10026. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO/IEC 10026 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.

3 Definitions

For the purposes of this part of ISO/IEC 10026, the definitions given in ISO/IEC 10026-1 (TP Model) and ISO/IEC 10026-2 (TP Service), in addition to those given in 7.3 of this part of ISO/IEC 10026, apply.

Definitions of terms specific to the OSI TP protocol specification are contained in 7.3.