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ANSI INCITS ISO IEC 24703-2004 Information technology Participant Identifiers.pdf

1、INCITS/ISO/IEC 24703:20042008 (ISO/IEC 24703:2004, IDT) Information technology Participant IdentifiersINCITS/ISO/IEC 24703:20042008(ISO/IEC 24703:2004, IDT)INCITS/ISO/IEC 24703:20042008 ii ITIC 2008 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with A

2、dobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing poli

3、cy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every c

4、are has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Adopted by INCITS (InterNational Committee for Information Technology Standards) as an

5、American National Standard. Date of ANSI Approval: 7/1/2008 Published by American National Standards Institute, 25 West 43rd Street, New York, New York 10036 Copyright 2008 by Information Technology Industry Council (ITI). All rights reserved. These materials are subject to copyright claims of Inter

6、national Standardization Organization (ISO), International Electrotechnical Commission (IEC), American National Standards Institute (ANSI), and Information Technology Industry Council (ITI). Not for resale. No part of this publication may be reproduced in any form, including an electronic retrieval

7、system, without the prior written permission of ITI. All requests pertaining to this standard should be submitted to ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America INCITS/ISO/IEC 24703:20042008 ITIC 2008 All rights reserved iii Foreword ISO (the International

8、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 th

9、e 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 in

10、formation technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft Interna

11、tional 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. Attention is drawn to the possibility that some of the elements of this document

12、may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 24703 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 36, Information technology for learning, education and training

13、. INCITS/ISO/IEC 24703:20042008 iv ITIC 2008 All rights reserved Introduction The purpose of this International Standard is to define the datatype of an identifier for the purposes of identifying participants in learning, education and training. Participants may be users, teachers, agents, groups, o

14、rganizations, institutions, etc. AMERICAN NATIONAL STANDARD INCITS/ISO/IEC 24703:20042008 ITIC 2008 All rights reserved 1 Information technology Participant identifiers 1 Scope This International Standard specifies the datatype of participant identifiers in learning, education and training. Security

15、 and protection of personal data associated with the use of a participant identifier is not addressed in this standard. The naming policy, registration, and authentication of participant identifiers are outside the scope of this International Standard. NOTE There is a risk of improper access and mis

16、use of personal and private data facilitated by the use of a participant identifier. It is the responsibility of the implementer to ensure proper use of a participant identifier. 2 Normative references The following referenced documents are indispensable for the application of this document. For dat

17、ed references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 2382-1, Information technology Vocabulary Part 1: Fundamental terms ISO/IEC 10646-1, Information technology Universal Multiple-Octet Coded

18、Character Set (UCS) Part 1: Architecture and Basic Multilingual Plane ISO/IEC TR 10176, Information technology Guidelines for the preparation of programming language standards ISO/IEC 11404, Information technology Programming languages, their environments and system software interfaces Language-inde

19、pendent datatypes 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO/IEC 2382-1 and the following apply. 3.1 abstract character character of the ISO/IEC 10646-1 repertoire (UCS) that is independent of encoding 3.2 binding application or mapping from one

20、 framework or specification to another 3.3 datatype set of distinct values, characterized by properties of those values and by operations on those values 3.4 encoding bit and byte format and representation of information INCITS/ISO/IEC 24703:20042008 2 ITIC 2008 All rights reserved 3.5 implementatio

21、n-defined behaviour unspecified behaviour where each implementation documents how the choice is made 3.6 participant identifier designation associated with a participant NOTE A participant may have more than one participant identifier a non-singular identifier. The policy of singularity or non-singu

22、larity of identifiers is outside the scope of this International Standard. 3.7 participant information data that is primarily associated with, tracked by, tracked for, and about participants in information technology systems 3.8 smallest permitted maximum SPM smallest maximum value for a requirement

23、 provision EXAMPLE The smallest permitted maximum length of field X shall be 25. 3.9 UCS universal character set character set defined by ISO/IEC 10646-1 3.10 unspecified behaviour implementation behaviour for which a standard provides two or more possibilities and imposes no further requirements on

24、 which possibility is chosen in any instance 4 Conformance A conforming participant identifier shall conform to the requirements specified in: Clause 5, Clause 6, Clause 7, at least one binding of Clause 8 and Clause 9. 5 Functionality A participant identifier shall represent a designator. NOTE More

25、 than one participant identifier may be associated with an individual participant. A participant identifier shall be a printable text string that should facilitate transcription by humans. EXAMPLE A 10-character string of digits is easier to transcribe than a 256-character string of mixed-case Latin

26、 characters. 6 Conceptual model A participant identifier is a string of abstract characters that is associated with a participant. Conceptually, the participant identifier is opaque in that the string contains no information itself, e.g., “35267901“ has no particular meaning. Some implementations an

27、d administrators may choose participant identifiers that convey information, e.g., “doe.john“, and some participant identifiers may contain even more information, e.g., “building2-doe.john“. INCITS/ISO/IEC 24703:20042008 ITIC 2008 All rights reserved 3 A participant identifier may be used in several

28、 contexts, such as being embedded into filenames, URLs, or E-mail addresses. Within information technology systems that manage participant information, participant identifiers may be used to link repositories to provide common and/or consolidated identification methods. 7 Semantics 7.1 Components of

29、 a participant identifier A participant identifier shall consist of identifier segments separated by segment separators. An identifier segment shall consist of identifier characters from the abstract character set. A segment separator shall be implementation-defined, but the period character “.“ is

30、recommended. 7.2 ISO/IEC 11404 datatype definition The following datatype, given in ISO/IEC 11404 notation, defines the participant identifier: characterstring(ISO/IEC-10646-1) The smallest permitted maximum length of a participant identifier shall be 50 abstract characters. NOTE The parameter “ISO/

31、IEC-10646-1“ identifies that abstract character repertoire, not its encoding. 7.3 Allowable abstract characters The abstract characters of a participant identifier shall be limited to the following set. The characters are named by their 16-bit hexadecimal name within the Basic Multilingual Plane of

32、UCS. This subset of abstract characters is based on ISO/IEC TR 10176. 7.3.1 Identifier characters The following are non-digit, non-special abstract characters: Latin: 0041-005A, 0061-007A, 00AA, 00BA, 00C0-00D6, 00D8-00F6, 00F8-01F5, 01FA-0217, 0250-02A8, 1E00-1E9B, 1EA0-1EF9, 207F Greek: 0386, 0388

33、-038A, 038C, 038E-03A1, 03A3-03CE, 03D0-03D6, 03DA, 03DC, 03DE, 03E0, 03E2-03F3, 1F00-1F15, 1F18-1F1D, 1F20-1F45, 1F48-1F4D, 1F50-1F57, 1F59, 1F5B, 1F5D, 1F5F-1F7D, 1F80-1FB4, 1FB6-1FBC, 1FC2-1FC4, 1FC6-1FCC, 1FD0-1FD3, 1FD6-1FDB, 1FE0-1FEC, 1FF2-1FF4, 1FF6-1FFC Cyrillic: 0401-040C, 040E-044F, 0451-

34、045C, 045E-0481, 0490-04C4, 04C7-04C8, 04CB-04CC, 04D0-04EB, 04EE-04F5, 04F8-04F9 Armenian: 0531-0556, 0561-0587 Hebrew: 05B0-05B9, 05BB-05BD, 05BF, 05C1-05C2, 05D0-05EA, 05F0-05F2 Arabic: 0621-063A, 0640-0652, 0670-06B7, 06BA-06BE, 06C0-06CE, 06D0-06DC, 06E5-06E8, 06EA-06ED Devanagari: 0901-0903, 0

35、905-0939, 093E-094D, 0950-0952, 0958-0963 Bengali: 0981-0983, 0985-098C, 098F-0990, 0993-09A8, 09AA-09B0, 09B2, 09B6-09B9, 09BE-09C4, 09C7-09C8, 09CB-09CD, 09DC-09DD, 09DF-09E3, 09F0-09F1 INCITS/ISO/IEC 24703:20042008 4 ITIC 2008 All rights reserved Gurmukhi: 0A02, 0A05-0A0A, 0A0F-0A10, 0A13-0A28, 0

36、A2A-0A30, 0A32-0A33, 0A35-0A36, 0A38-0A39, 0A3E-0A42, 0A47-0A48, 0A4B-0A4D, 0A59-0A5C, 0A5E, 0A74 Gujarati: 0A81-0A83, 0A85-0A8B, 0A8D, 0A8F-0A91, 0A93-0AA8, 0AAA-0AB0, 0AB2-0AB3, 0AB5-0AB9, 0ABD-0AC5, 0AC7-0AC9, 0ACB-0ACD, 0AD0, 0AE0 Oriya: 0B01-0B03, 0B05-0B0C, 0B0F-0B10, 0B13-0B28, 0B2A-0B30, 0B3

37、2-0B33, 0B36-0B39, 0B3E-0B43, 0B47-0B48, 0B4B-0B4D, 0B5C-0B5D, 0B5F-0B61 Tamil: 0B82-0B83, 0B85-0B8A, 0B8E-0B90, 0B92-0B95, 0B99-0B9A, 0B9C, 0B9E-0B9F, 0BA3-0BA4, 0BA8-0BAA, 0BAE-0BB5, 0BB7-0BB9, 0BBE-0BC2, 0BC6-0BC8, 0BCA-0BCD Telugu: 0C01-0C03, 0C05-0C0C, 0C0E-0C10, 0C12-0C28, 0C2A-0C33, 0C35-0C39

38、, 0C3E-0C44, 0C46-0C48, 0C4A-0C4D, 0C60-0C61 Kannada: 0C82-0C83, 0C85-0C8C, 0C8E-0C90, 0C92-0CA8, 0CAA-0CB3, 0CB5-0CB9, 0CBE-0CC4, 0CC6-0CC8, 0CCA-0CCD, 0CDE, 0CE0-0CE1 Malayalam: 0D02-0D03, 0D05-0D0C, 0D0E-0D10, 0D12-0D28, 0D2A-0D39, 0D3E-0D43, 0D46-0D48, 0D4A-0D4D, 0D60-0D61 Thai: 0E01-0E3A, 0E40-

39、0E5B Lao: 0E81-0E82, 0E84, 0E87-0E88, 0E8A, 0E8D, 0E94-0E97, 0E99-0E9F, 0EA1-0EA3, 0EA5, 0EA7, 0EAA-0EAB, 0EAD-0EAE, 0EB0-0EB9, 0EBB-0EBD, 0EC0-0EC4, 0EC6, 0EC8-0ECD, 0EDC-0EDD Tibetan: 0F00, 0F18-0F19, 0F35, 0F37, 0F39, 0F3E-0F47, 0F49-0F69, 0F71-0F84, 0F86-0F8B, 0F90-0F95, 0F97, 0F99-0FAD, 0FB1-0F

40、B7, 0FB9 Georgian: 10A0-10C5, 10D0-10F6 Hiragana: 3041-3093, 309B-309C Katakana: 30A1-30F6, 30FB-30FC Bopomofo: 3105-312C CJK Unified Ideographs: 4E00-9FA5 Hangul: AC00-D7A3 7.3.2 Identifier digits The following are digit characters: Digits: 0030-0039, 0660-0669, 06F0-06F9, 0966-096F, 09E6-09EF, 0A6

41、6-0A6F, 0AE6-0AEF, 0B66-0B6F, 0BE7-0BEF, 0C66-0C6F, 0CE6-0CEF, 0D66-0D6F, 0E50-0E59, 0ED0-0ED9, 0F20-0F33 7.3.3 Identifier special characters The following are special characters: Special characters: 005F, 00B5, 00B7, 02B0-02B8, 02BB, 02BD-02C1, 02D0-02D1, 02E0-02E4, 037A, 0559, 093D, 0B3D, 1FBE, 20

42、3F-2040, 2102, 2107, 210A-2113, 2115, 2118-211D, 2124, 2126, 2128, 212A-2131, 2133-2138, 2160-2182, 3005-3007, 3021-3029 INCITS/ISO/IEC 24703:20042008 ITIC 2008 All rights reserved 5 7.4 Encoding characters The following characters define the set of encoding characters. A B C D E F G H I J K L M N O

43、 P Q R S T U V W X Y Z a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 _ - NOTE 1 The selection of characters is intended to be harmonized with IETF RFC 2396. NOTE 2 The percent character “%“ is used in the encoding of a participant identifier, but it is not part of the “enco

44、ding character set“. 8 Bindings 8.1 Data instance An instance of a participant identifier shall be encoded as an array of octets. 8.2 C, C+ binding Applications and environments that claim conformance within a C/C+ language translation system shall use the “char“ base type (or compatible) for struct

45、ures, pointers, arrays, and function parameters that store a participant identifier. NOTE If the 7-bit encoding is used for the C/C+ translation environment, the smallest permitted maximum requirement implies that the participant identifier must be at least 501 chars long: (“%U“ + 8 hex digits) * 50

46、 + 1 terminating null character. An instance of a participant identifier shall be encoded as an array of octets. 8.3 Java binding Applications and environments that claim conformance within a Java language translation system shall use the string type (or compatible) for classes, arrays, and method p

47、arameters that store a participant identifier. 8.4 ECMAScript (JavaScript) binding Applications and environments that claim conformance within an ECMAScript (JavaScript) language translation system shall use the “string“ type (or compatible) for arrays and function parameters that store a participan

48、t identifier. 9 Encodings All bindings shall use the encodings specified in this clause. NOTE 1 Applications and user interfaces may allow entry and display of these participant identifiers in forms that are more natural to humans, e.g., a login screen for a Japanese user might only show Kanji chara

49、cters, meanwhile the application converts these Kanji characters to/from the participant identifier encoding format. INCITS/ISO/IEC 24703:20042008 6 ITIC 2008 All rights reserved A participant identifier shall use one of the following conventions for encoding characters for each abstract character to be encoded. The symbol “h“ represents 4 bits of information represented as a hexadecimal character (0-9, A-F, case-insensitive). Abstract characters that are

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