1、BRITISH STANDARD BS ISO/IEC 24703:2004 Information technology Participant identifiers ICS 35.240 BS ISO/IEC 24703:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 19 July 2004 BSI 19 July 2004 ISBN 0 580 44112 1 National foreword This Bri
2、tish Standard reproduces verbatim ISO/IEC 24703:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee IST/43, Information technology for learning, education and training, which has the responsibility to: A list of organizatio
3、ns represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or
4、 by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer imm
5、unity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate the
6、m in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO/IEC title page, pages ii to iv, pages 1 to 6, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued
7、since publication Amd. No. Date Comments Reference number ISO/IEC 24703:2004(E)INTERNATIONAL STANDARD ISO/IEC 24703 First edition 2004-05-15 Information technology Participant identifiers Technologies de linformation Identificateurs de participant BSISO/IEC24703:2004IS/OIE30742 C:(4002E) DPlcsid Fre
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12、 ttseuqer ehe.r ISO cirypothg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mail coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dnaii ISO/IE 4002 C Allr ihgtsser edevrBSISO/IEC24703:2004 iiiForeword ISO (the International Organization for Standar
13、dization) 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 organizatio
14、n 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, IS
15、O 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 International Standards adopted
16、 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 may be the subject of pa
17、tent 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. BSISO/IEC24703:2004iv
18、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, organizations, institutions, etc. BSISO/IEC24703:2004INTENRATIONAL
19、 TSANDADR IS/OIE30742 C:(4002E)1Information technology Participant identifiers 1 Scope This International Standard specifies the datatype of participant identifiers in learning, education and training. Security and protection of personal data associated with the use of a participant identifier is no
20、t 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 misuse of personal and private data facilitated by the use of a participant identifier. It is
21、 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 dated references, only the edition cited applies. For undated references, the latest edition
22、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 Character Set (UCS) Part 1: Architecture and Basic Multilingual Plane ISO/IEC TR 10176, In
23、formation technology Guidelines for the preparation of programming language standards ISO/IEC 11404, Information technology Programming languages, their environments and system software interfaces Language-independent datatypes 3 Terms and definitions For the purposes of this document, the terms and
24、 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 framework or specification to another 3.3 datatype set of distinct values, characterized
25、by properties of those values and by operations on those values 3.4 encoding bit and byte format and representation of information BSISO/IEC24703:2004ISO/IEC 24703:2004(E) 2 I SO/IE 4002 C All irhgts seredevr3.5 implementation-defined behaviour unspecified behaviour where each implementation documen
26、ts 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-singularity of identifiers is outside the scope of this International Standard.
27、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 provision EXAMPLE The smallest permitted maximum length of field X shall b
28、e 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 which possibility is chosen in any instance 4 Conformance A conforming par
29、ticipant 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 than one participant identifier may be associated with an individual parti
30、cipant. 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 characters. 6 Conceptual model A participant identifier is a string of abs
31、tract 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 and administrators may choose participant identifiers that convey informati
32、on, e.g., “doe.john“, and some participant identifiers may contain even more information, e.g., “building2-doe.john“. BSISO/IEC24703:2004IS/OIE30742 C:(4002E) I SO/IE 4002 C All irhgts seredevr 3A participant identifier may be used in several contexts, such as being embedded into filenames, URLs, or
33、 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 a participant identifier A participant identifier shall c
34、onsist 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 recommended. 7.2 ISO/IEC 11404 datatype definition The fol
35、lowing 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/IEC-10646-1“ identifies that abstract character repertoire
36、, 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 UCS. This subset of abstract characters is based on ISO/IE
37、C 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, 0388-038A, 038C, 038E-03A1, 03A3-03CE, 03D0-03D6, 03DA, 03DC,
38、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, 0451-045C, 045E-0481, 0490-04C4, 04C7-04C8, 04CB-04CC, 04D0-04E
39、B, 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, 0905-0939, 093E-094D, 0950-0952, 0958-0963 Bengali: 0981-09
40、83, 0985-098C, 098F-0990, 0993-09A8, 09AA-09B0, 09B2, 09B6-09B9, 09BE-09C4, 09C7-09C8, 09CB-09CD, 09DC-09DD, 09DF-09E3, 09F0-09F1 BSISO/IEC24703:2004IS/OIE30742 C:(4002E) 4 I SO/IE 4002 C All irhgts seredevr Gurmukhi: 0A02, 0A05-0A0A, 0A0F-0A10, 0A13-0A28, 0A2A-0A30, 0A32-0A33, 0A35-0A36, 0A38-0A39,
41、 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, 0B32-0B33, 0B36-0B39, 0B3E-0B43, 0B47-0B48, 0
42、B4B-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, 0C3E-0C44, 0C46-0C48, 0C4A-0C4D, 0C60-0C
43、61 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, 0E40-0E5B Lao: 0E81-0E82, 0E84, 0E87-0E88, 0E8A
44、, 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, 0FB1-0FB7, 0FB9 Georgian: 10A0-10C5, 10D0-10F6 Hi
45、ragana: 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, 0A66-0A6F, 0AE6-0AEF, 0B66-0B6F, 0BE7-0BEF, 0
46、C66-0C6F, 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, 203F-2040, 2102, 2107, 210A-2113, 2115, 2118
47、-211D, 2124, 2126, 2128, 212A-2131, 2133-2138, 2160-2182, 3005-3007, 3021-3029 BSISO/IEC24703:2004IS/OIE30742 C:(4002E) I SO/IE 4002 C All irhgts seredevr 57.4 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 P Q R S T U V W X Y Z a b
48、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 “encoding character set“. 8 Bind
49、ings 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 structures, pointers, arrays, and function parameters that store a participant identifier. NOTE If the 7-bit encoding is used for the C/C+ tr
