ISO/IEC 13346-5:1995 情報技術—情報交換のための非順次記録を使用した追記型および書き換え可能メディアのボリュームとファイル構造—パート5：記録構造 | ページ 2

2 部品参照

ISO/IЕС 13346 内の参照の最初の桁はパートを識別します。たとえば、2/5 は ISO/IEC 13346-2 の第 5 節を指し、図 4/3 は ISO/IEC 13346-4 の図 3 を指します。

3.1 入力

このISO/IEC 13346 の規格は、別の規格または一部で次の仕様を要求しています。

• ファイルのデータ空間 (5/6.1 を参照)
• ファイルのレコードが 5/9.2.4, 5/9.2.5, 5/9.2.6, 5/9.2.7 または 5/9.2.8 に従って解釈される場合、または 5 に従って表示されることを意図している場合/9.3, LINE FEED, VERTICAL TABULATION, FORM FEED, および CARRIAGE RETURN 文字を含む文字をファイルのデータ スペース内でエンコードする方法の仕様。

Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialised system for worldwide standardisation. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organisation to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organisations, governmental and non-governmental, in liaison with ISO and IEC, also take part in this 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 of an International Standard requires approval by at least 75% of the national bodies casting a vote.

International Standard ISO/IEC 13346 was prepared by the European Association for Standardizing Information and Communication Systems, ECMA, (as Standard ECMA-167) and was adopted, under a special"fast-track procedure", by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval by National Bodies of ISO and IEC.

Introduction

ISO/IEC 13346 is a volume and file structure standard for interchanging files and as such, it is a peer to existing volume and file structure standards such as ISO 9293 and ISO 9660. It is rather different from those standards in at least two important ways. Firstly, it offers much more functionality, mainly because of user needs for increased character set support and for more powerful file system features. Secondly, it acknowledges the separate concerns of booting, volume structure and file system structure. Rather than bundling these different functions together, ISO/IEC 13346 carefully segregates these functions into separate parts and describes in detail how those parts fit together. It is expected that future volume and file structure standards will fit into this framework, rather than building other distinct and incompatible formats.

ISO/IEC 13346 is published in five Parts. 1 — general — specifies references, definitions, notations and basic structures used in the other four Parts. 2 — volume and boot block recognition — specifies formats and system requirements for recognising the volume structures on a medium and booting from a medium. 3 — volume structure — specifies how to record various volume-related entities such as volumes, volume sets and logical volumes. 4 — file structure — specifies how to record and interpret files, both file data and file attributes, and file hierarchies within logical volumes. 5 — record structure — specifies how to record and interpret file data encoded as records.

1 Scope

ISO/IEC 13346 specifies a format and associated system requirements for volume and boot block recognition, volume structure, file structure and record structure for the interchange of information on media between users of information processing systems.

The media shall be recorded as if the recording of sectors may be done in any order.

ISO/IEC 13346 consists of the following five Parts:

Part 1: General

Part 2: Volume and Boot Block Recognition

Part 3: Volume Structure

Part 4: File Structure

Part 5: Record Structure

Annex A — ICB Strategies, is part of ISO/IEC 13346-4.

This of ISO/IEC 13346 specifies a format and associated system requirements for record structure by specifying:

• record structures intended for use when the information constituting a file is required to be interpreted as a set of records;
• the attributes of the records of a file;
• requirements for the processes which are provided within information processing systems, to enable information to be interchanged between different systems; for this purpose it specifies the functions to be provided within systems which are intended to originate or receive media which conform to this of ISO/IEC 13346.

3 interface

This clause specifies the interface of this of ISO/IEC 13346 to other standards or Parts.

3.2 Output

This of ISO/IEC 13346 specifies the following which may be used by other standards or Parts.

• Identification and specification of record types (see 5/9.2).
• Identification and specification of record display attributes (see 5/9.3).

4 Normative Reference

The following standard contains provisions which, through reference in this text, constitute provisions of this of ISO/IEC 13346. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this of ISO/IEC 13346 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.