ISO/IEC 9066-1:1989 情報処理システム—テキスト通信—信頼性の高い転送—パート1：モデルとサービスの定義 | ページ 2

3.1 参照モデルの定義

ISO/IEC 9066 のこの部分は、ISO 7498 で開発された概念に基づいており、ISO 7498 で定義されている次の用語を使用しています。

• a)アプリケーション層;
• b)申請プロセス
• c)アプリケーションエンティティ。
• d)アプリケーションサービス要素;
• e)アプリケーションプロトコルデータユニット。
• f)アプリケーションプロトコル制御情報。
• g)プレゼンテーション層。
• h)プレゼンテーションサービス
• i)プレゼンテーション接続;
• j)セッションサービス
• k)セッション接続。
• l)転送構文;
• m)双方向の代替相互作用。他の
• n)ユーザー要素。

Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) together form a system for worldwide standardization as a whole. 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 approval before their acceptance as International Standards. They are approved in accordance with procedures requiring at least 75 % approval by the national bodies voting.

International Standard ISO/IEC 9066-1 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology.

Introduction

This part of ISO/IEC 9066 defines the services provided by an application-service-element — the Reliable Transfer Service Element (RTSE) — to provide for the Reliable Transfer of application-protocol-data-units (APDUs) between open systems. This part of ISO/IEC 9066 is one of a set of International Standards defining sets of application-service-elements commonly used by a number of applications.

Reliable Transfer provides an application-independent mechanism to recover from communication and end-system failure minimizing the amount of retransmission.

This part of ISO/IEC 9066 is technically aligned with CCITT Recommendation X.218.

1 Scope

This part of ISO/IEC 9066 defines the services provided by the Reliable Transfer Service Element (RTSE). The RTSE services are provided by the use of the RTSE protocol (ISO/IEC 9066-2) in conjunction with the Association Control Service Element (ACSE) services (ISO 8649) and the ACSE protocol (ISO 8650), and the presentation-service (ISO 8822).

No requirement is made for conformance to this part of ISO/IEC 9066.

2 Normative references

The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO/IEC 9066. At the time of publication, the editions were valid. All Standards are subject to revision, and parties to agreement based on this part of ISO/IEC 9066 are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of ISO and IEC maintain Registers of currently valid International Standards.

3 Definitions

3.2 Service conventions definitions

This part of ISO/IEC 9066 makes use of the following terms defined in ISO/TR 8509:

• a) service-provider;
• b) service-user;
• c) confirmed service;
• d) non-confirmed service;
• e) provider-initiated service;
• f) service-primitive; primitive;
• g) request (primitive);
• h) indication (primitive);
• i) response (primitive); and
• j) confirm (primitive).

3.3 Presentation service definitions

This part of ISO/IEC 9066 makes use of the following terms defined in ISO 8822:

• a) abstract syntax;
• b) abstract syntax name;
• c) default context;
• d) presentation context;
• e) transfer syntax name.

3.4 Association control definitions

This part of ISO/IEC 9066 makes use of the following terms defined in ISO 8649:

• a) application-association; association;
• b) application context;
• c) Association Control Service Element;
• d) X.410-1984 mode.

3.5 Reliable Transfer definitions

For the purpose of this part of ISO/IEC 9066 the following definitions apply: