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Australian/New Zealand Standard®
Information technology— Specification for a data descriptive file for information interchange
AS/NZS 3654:1996 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee IT/1, Information Systems—Interconnection. It was approved on behalf of the Council of Standards Australia on 19 December 1995 and on behalf of the Council of Standards New Zealand on 3 May 1995. It was published on 5 May 1996.
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The following interests are represented on Committee IT/1: Australian Bankers’ Association Australian Bureau of Statistics Australian Computer Society Australian Computer Users Association Australian Information Industry Association Australian Vice Chancellors Committee Department of Defence, Australia Department of Industry, Science and Technology, Australia Government Computing Service, New Zealand Information Exchange Steering Committee, Australia Institute of Information and Communication Technologies, CSIRO, Australia OPTUS Communications, Australia Telstra Australia Telecom, New Zealand
Review of Standards. To keep abreast of progress in industry, Joint Australian/ New Zealand Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Joint Standards and related publications will be found in the Standards Australia and Standards New Zealand Catalogue of Publications; this information is supplemented each month by the magazines ‘The Australian Standard’ and ‘Standards New Zealand’, which subscribing members receive, and which give details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Joint Standards, addressed to the head office of either Standards Australia or Standards New Zealand, are welcomed. Notification of any inaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be made without delay in order that the matter may be investigated and appropriate action taken.
AS/NZS 3654:1996
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Australian/New Zealand Standard®
Information technology— Specification for a data descriptive file for information interchange
PUBLISHED JOINTLY BY: STANDARDS AUSTRALIA 1 The Crescent, Homebush NSW 2140 Australia STANDARDS NEW ZEALAND Level 10, Standards House, 155 The Terrace, Wellington 6001 New Zealand
ISBN 0 7337 0293 7
ii
PREFACE
This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee IT/1 on Information Systems—Interconnection. It is identical with and has been reproduced from ISO/IEC 8211:1994, Information technology—Specification for a data descriptive file for information interchange and will supersede AS 3654—1989, Information processing—Specification for a data descriptive file for information interchange. The objective of this Standard is to provide users of multiplatform environments with a medium-independent and system independent file and data record formats for the interchange of information. The term ‘informative’ has been used in the Standard to define the application of the annex to which it applies. An ‘informative’ annex is only for information and guidance. A ‘normative’ annex is an integral part of a Standard. Users of this Standard are advised by Standards Australia and Standards New Zealand, under arrangements made with ISO and IEC, as well as certain other Standards organizations, that the number of this Standard is not reproduced on each page; its identity is shown only on the cover and title pages. For the purpose of this Standard, the source text should be modified as follows: (a) Terminology The words ‘this Australian/New Zealand Standard’ should replace the words ‘this International Standard’ wherever they appear. (b) Decimal marker Substitute a full point for a comma where it appears as a decimal marker. (c) References The references to International Standards should be replaced by references, where appropriate, to the following Australian or Joint Australian/New Zealand Standards: Reference to International Standard or other publication IEC 559 ISO/IEC 646 Binary floating point arithmetic for microprocessor systems Information technology— ISO 7 bit coded character set for information interchange Information technology— Control functions for coded character sets Information technology— Open Systems Interconnection— Specification of Abstract Syntax Notation One (ASN.1) Information technology— Open Systems Interconnection— Procedures for operation of OSI Registration Authorities Part 2: Registration procedures for OSI document types Australian or Joint Australian/New Zealand Standard AS —
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1776
Information processing— 7-bit coded character set for information interchange Character sets and information coding— Control functions for 7-bit and 8-bit coded character sets Information technology— Open Systems Interconnection— Specification of Abstract Syntax Notation One (ASN.1) Information technology— Open Systems Interconnection— Procedures for the operation of OSI registration authorities Part 2: Registration procedures for OSI document types
6429
2761
8824
3625
9834
AS/NZS 4153
9834-2
4153.2
iii
ISO/IEC 10646 10646-1 AS/NZS 4189 Information technology— Universal multiple-octet coded Character Set (UCS) 4189.1 Part 1: Architecture and basic multilingual plane AS 1953 Information processing— ISO 7-bit and 8-bit coded character sets— Code extension techniques Information processing— Representation of numerical values in character strings for information interchange
Information technology— Universal Multiple-Octet Coded Character Set (UCS) Part 1: Architecture and Basic Multilingual Plane Information processing— ISO 7-bit and 8-bit coded character sets—code extension techniques Information processing— Representation of numerical values in character strings for information interchange Information processing systems— Open Systems Interconnection— File Transfer, Access and Management— Part 1: General Introduction Information processing— 8-bit single-byte coded graphic character sets Part 1: Latin alphabet No. 1 ISO International register of coded character sets to be used with escape sequences
2022
6093
3767
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ISO 8751 8751-1 8859 8859-1
AS/NZS 3646 Information processing systems— Open Systems Interconnection— File transfer, access and management 3646.1 Part 1: General introduction
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viii
Page
List of tables Table Table Table Table Table 1 - Delimiters and Their Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - Data Descriptive Field Components . . . . . . . . . . . . . . . . . . . . 3 - Extensions of Bitfield Data Descriptions . . . . . . . . . . . . . . . . . A.1 Information Objects in the Unstructured Text Document Type A.2 Information Objects in the Structured Text Document Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 15 19 25 27
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Originated as AS 3654—1989. Jointl y revised and designated AS/NZS 3654:1996.
1 AUSTRALIAN/NEW ZEALAND STANDARD
Information technology—Specification for a data descriptive file for information interchange
1 Scope
This International Standard specifies an interchange format to facilitate the moving of files or parts of files containing data records between computer systems. The interchange format is not intended as a record format for the indigenous files of any specific system but may be used for this purpose. The standard defines a generalized structure which can be used to transmit, between systems, files or records containing a wide variety of data types and data structures. It specifies the means for the description of the contents of data records but does not specify their application semantics although these semantics can be included as a part of the transmission. The interchange format may also be used to transport individual records, individual data fields or individual subfields with their description. This International Standard specifies: • • • • • • media-independent file and data record descriptions for information interchange; the description of data elements, vectors, arrays and hierarchies containing character strings, bit strings and numeric forms; a data descriptive file composed of a data descriptive record and companion data records that enable interchange to occur with minimal specific external description; the data descriptive record that describes the characteristics of each data field within the companion data records; three levels of complexity of file and record structure; FTAM unstructured and structured document types
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2 Normative references
The following standards contain provisions which, through reference in the text, constitute provisions of this International Standard. At the time of its publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard 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. ISO/IEC 646:1991, Information technology - ISO 7-bit coded character set for information interchange ISO 2022:1986, Information processing - ISO 7-bit and 8-bit coded character sets - Code extension techniques ISO 6093:1985, Informationprocessing - Representation of numerical values in character strings for informationinterchange ISO/IEC 6429:1992, Information technology - Control functions for coded character sets ISO 8571-1:1988, Information processing systems - Open Systems Interconnection - File Transfer, Access and Management - Part 1: General Introduction ISO/IEC 8824:1990, Information technology - Open Systems Interconnection - Specification of Abstract Syntax Notation One (ASN.1) ISO 8859-1:1987, Information processing - 8-bit single-byte coded graphic character sets - Part 1: Latin alphabet No. 1
COPYRIGHT
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AS/NZS 3654:1996, Information technology Specification for a data descriptive file for information interchange
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