1、Information technology Abstract Syntax Notation One (ASN.1): Parameterization of ASN.1 specificationsCAN/CSA-ISO/IEC 8824-4:13(ISO/IEC 8824-4:2008, IDT)National Standard of CanadaNOT FOR RESALE. / PUBLICATION NON DESTINE LA REVENTE.Legal Notice for StandardsCanadian Standards Association (operating
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20、mark of the Canadian Standards Association, operating as “CSA Group”National Standard of CanadaPublished in January 2013 by CSA GroupA not-for-profit private sector organization5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at shop
21、.csa.caApproved byStandards Council of CanadaCAN/CSA-ISO/IEC 8824-4:13Information technology Abstract Syntax Notation One (ASN.1): Parameterization of ASN.1 specificationsPrepared by InternationalOrganizationforStandardization/ International Electrotechnical CommissionReviewed byCAN/CSA-ISO/IEC 8824
22、-4:13Information technology Abstract Syntax NotationOne (ASN.1): Parameterization of ASN.1 specificationsCSA/4 2013 CSA Group January 2013CAN/CSA-ISO/IEC 8824-4:13Information technology Abstract Syntax Notation One (ASN.1): Parameterization of ASN.1 specificationsCSA PrefaceStandards development wit
23、hin the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1)
24、 for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunication Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T).
25、This Standard supersedes CAN/CSA-ISO/IEC 8824-4-04 (adoption of ISO/IEC 8824-4:2002).At the time of publication, ISO/IEC 8824-4:2008 is available from ISO and IEC in English only. CSA Group will publish the French version when it becomes available from ISO and IEC.This International Standard was rev
26、iewed by the TCIT under the jurisdiction of the Strategic Steering Committee on Information Technology and deemed acceptable for use in Canada. From time to time, ISO/IEC may publish addenda, corrigenda, etc. The TCIT will review these documents for approval and publication. For a listing, refer to
27、the Current Standards Activities page at standardsactivities.csa.ca. This Standard has been formally approved, without modification, by the Technical Committee and has been approved as a National Standard of Canada by the Standards Council of Canada. 2013 CSA GroupAll rights reserved. No part of thi
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30、44.This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiriescsagroup.org and include “Proposal for change” in the subject line:(a) Standard design
31、ation (number);(b) relevant clause, table, and/or figure number;(c) wording of the proposed change; and(d) rationale for the change.Reference numberISO/IEC 8824-4:2008(E)ISO/IEC 2008INTERNATIONAL STANDARD ISO/IEC8824-4Fourth edition2008-12-15Information technology Abstract Syntax Notation One (ASN.1
32、): Parameterization of ASN.1 specificationsTechnologies de linformation Notation de syntaxe abstraite numro un (ASN.1): Paramtrage des spcifications de la notation de syntaxe abstraite numro un ISO/IEC 8824-4:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Ado
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35、e 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. COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2008 All rights reserved. Unless otherwise specified
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37、ostale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org ii ISO/IEC 2008 All rights reservedCAN/CSA-ISO/IEC 8824-4:13ISO/IEC 8824-4:2008(E) ISO/IEC 2008 All rights reserved iiiCONTENTS Page Introduction . v 1 Scope 1 2 Normative references . 1
38、2.1 Identical Recommendations | International Standards 1 3 Definitions 1 3.1 Specification of basic notation 1 3.2 Information object specification . 1 3.3 Constraint specification. 1 3.4 Additional definitions . 1 4 Abbreviations . 2 5 Convention . 2 6 Notation 2 6.1 Assignments 2 6.2 Parameterize
39、d definitions 2 6.3 Symbols. 3 7 ASN.1 lexical items 3 8 Parameterized assignments. 3 9 Referencing parameterized definitions. 6 10 Abstract syntax parameters 8 Annex A Examples. 9 A.1 Example of the use of a parameterized type definition . 9 A.2 Example of use of parameterized definitions together
40、with an information object class 9 A.3 Example of parameterized type definition that is finite 10 A.4 Example of a parameterized value definition 11 A.5 Example of a parameterized value set definition 11 A.6 Example of a parameterized class definition. 11 A.7 Example of a parameterized object set de
41、finition . 12 A.8 Example of a parameterized object set definition . 12 Annex B Summary of the notation . 13 Foreword . iv CAN/CSA-ISO/IEC 8824-4:13ISO/IEC 8824-4:2008(E) iv ISO/IEC 2008 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International E
42、lectrotechnical 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 organization to deal with particular fields of te
43、chnical 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 tec
44、hnical 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 by the joint technical committee are
45、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 patent rights. ISO and IEC shall not be
46、held responsible for identifying any or all such patent rights. ISO/IEC 8824-4 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 6, Telecommunications and information exchange between systems, in collaboration with ITU-T. The identical text is published
47、 as ITU-T Rec. X.683 (11/2008). This fourth edition cancels and replaces the third edition (ISO/IEC 8824-4:2002), which has been technically revised. It also incorporates the Technical Corrigendum ISO/IEC 8824-4:2002/Cor.1:2007. ISO/IEC 8824 consists of the following parts, under the general title I
48、nformation technology Abstract Syntax Notation One (ASN.1): Part 1: Specification of basic notation Part 2: Information object specification Part 3: Constraint specification Part 4: Parameterization of ASN.1 specifications CAN/CSA-ISO/IEC 8824-4:13ISO/IEC 8824-4:2008(E) ISO/IEC 2008 All rights reser
49、ved vIntroduction Application designers need to write specifications in which certain aspects are left undefined. Those aspects will later be defined by one or more other groups (each in its own way), to produce a fully defined specification for use in the definition of an abstract syntax (one for each group). In some cases, aspects of the s
