ISO-8824-2-2002.pdf
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1、 Reference number ISO/IEC 8824-2:2002(E) ISO/IEC 2002 INTERNATIONAL STANDARD ISO/IEC 8824-2 Third edition 2002-12-15 Information technology Abstract Syntax Notation One (ASN.1): Information object specification Technologies de linformation Notation de syntaxe abstraite numro un (ASN.1): Spcification
2、 des objets informationnels Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007 23:11:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 8824-2:2002
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6、O/IEC 2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in
7、 the country of the requester. ISO copyright office Case postale 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 Published by ISO in 2003 Published in Switzerland ii ISO/IEC 2002 All rights reserved Copyright International Organization for St
8、andardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007 23:11:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 8824-2:2002(E) ISO/IEC 2002 All rights reserved iii CONTENTS Page Introduction . v
9、 1 Scope 1 2 Normative references . 1 2.1 Identical Recommendations | International Standards 1 3 Definitions 1 3.1 Specification of basic notation 1 3.2 Constraint specification. 1 3.3 Parameterization of ASN.1 specification 1 3.4 Additional definitions 2 4 Abbreviations. 3 5 Convention. 3 6 Notati
10、on 3 6.1 Assignments 3 6.2 Types. 3 6.3 Values . 4 6.4 Elements 4 7 ASN.1 lexical items 4 7.1 Information object class references. 4 7.2 Information object references 4 7.3 Information object set references 4 7.4 Type field references. 4 7.5 Value field references . 4 7.6 Value set field references
11、5 7.7 Object field references 5 7.8 Object set field references. 5 7.9 Word . 5 7.10 Additional keywords. 5 8 Referencing definitions 5 9 Information object class definition and assignment . 6 10 Syntax List 9 11 Information object definition and assignment 11 12 Information object set definition an
12、d assignment. 13 13 Associated tables 15 14 Notation for the object class field type. 15 15 Information from objects 17 Annex A The TYPE-IDENTIFIER information object class. 20 Annex B Abstract syntax definitions 21 Annex C The instance-of type 22 Annex D Examples. 24 D.1 Example usage of simplified
13、 OPERATION class. 24 D.2 Example usage of “ObjectClassFieldType“ 25 D.3 Illustrate usage of objects and object sets 25 Annex E Tutorial annex on the ASN.1 model of object set extension 27 Annex F Summary of the notation 28 Copyright International Organization for Standardization Provided by IHS unde
14、r license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007 23:11:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 8824-2:2002(E) iv ISO/IEC 2002 All rights reserved Foreword ISO (the International Organization for Standardization)
15、 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 organization to deal
16、 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, ISO and IEC
17、 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 by the j
18、oint 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 patent righ
19、ts. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 8824-2 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. Th
20、e identical text is published as ITU-T Rec. X.681. This third edition cancels and replaces the second edition (ISO/IEC 8824-2:1998), which has been technically revised. It also incorporates the Technical Corrigendum ISO/IEC 8824-2:1998/Cor.1:1999 and the Amendment ISO/IEC 8824-2:1998/Amd.1:2000. ISO
21、/IEC 8824 consists of the following parts, under the general title Information 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 Copyright
22、 International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/07/2007 23:11:22 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 8824-2:2002(E) ISO/IEC 2002 All rights reserved
23、v Introduction An application designer frequently needs to design a protocol which will work with any of a number of instances of some class of information objects, where instances of the class may be defined by a variety of other bodies, and may be added to over time. Examples of such information o
24、bject classes are the “operations“ of Remote Operations Service (ROS) and the “attributes“ of the OSI Directory. This Recommendation | International Standard provides notation which allows information object classes as well as individual information objects and information object sets thereof to be
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