1、Reference numberISO/IEC 13522-8:2001(E)ISO/IEC 2001Information technology Coding ofmultimedia and hypermedia information Part 8:XML notation for ISO/IEC 13522-5Technologies de linformation Codage de linformation multimdia ethypermdia Partie 8: Notation XML pour lISO/CEI 13522-5National Standard of C
2、anadaCAN/CSA-ISO/IEC 13522-8:02(ISO/IEC 13522-8:2001)International Standard ISO/IEC 13522-8:2001 (first edition, 2001-05-15) has been adopted withoutmodification (IDT) as CSA Standard CAN/CSA-ISO/IEC 13522-8:02, which has been approved as a NationalStandard of Canada by the Standards Council of Cana
3、da.ISBN 1-55324-971-2 December 2002The Canadian Standards Association (CSA), The Standards Council of Canada is theunder whose auspices this National Standard has been coordinating body of the National Standards system, produced, was chartered in 1919 and accredited by a federation of independent, a
4、utonomousthe Standards Council of Canada to the National organizations working towards the furtherStandards system in 1973. It is a not-for-profit, development and improvement of voluntarynonstatutory, voluntary membership association standardization in the national interest.engaged in standards dev
5、elopment and certification The principal objects of the Council are to foster activities. and promote voluntary standardization as a means CSA standards reflect a national consensus of of advancing the national economy, benefiting theproducers and users including manufacturers, health, safety, and w
6、elfare of the public, assisting consumers, retailers, unions and professional and protecting the consumer, facilitating domestic organizations, and governmental agencies. The and international trade, and furthering internationalstandards are used widely by industry and commerce cooperation in the fi
7、eld of standards.and often adopted by municipal, provincial, and A National Standard of Canada is a standard whichfederal governments in their regulations, particularly has been approved by the Standards Council ofin the fields of health, safety, building and Canada and one which reflects a reasonab
8、leconstruction, and the environment. agreement among the views of a number of capableIndividuals, companies, and associations across individuals whose collective interests provide to theCanada indicate their support for CSAs standards greatest practicable extent a balance ofdevelopment by volunteeri
9、ng their time and skills to representation of producers, users, consumers, andCSA Committee work and supporting the Associations others with relevant interests, as may be appropriateobjectives through sustaining memberships. The to the subject in hand. It normally is a standardmore than 7000 committ
10、ee volunteers and the 2000 which is capable of making a significant and timelysustaining memberships together form CSAs total contribution to the national interest.membership from which its Directors are chosen. Approval of a standard as a National Standard ofSustaining memberships represent a major
11、 source of Canada indicates that a standard conforms to theincome for CSAs standards development activities. criteria and procedures established by the StandardsThe Association offers certification and testing Council of Canada. Approval does not refer to theservices in support of and as an extensio
12、n to its technical content of the standard; this remains thestandards development activities. To ensure the continuing responsibility of the accreditedintegrity of its certification process, the Association standards-development organization.regularly and continually audits and inspects products Tho
13、se who have a need to apply standards arethat bear the CSA Mark. encouraged to use National Standards of CanadaIn addition to its head office and laboratory complex whenever practicable. These standards are subject in Toronto, CSA has regional branch offices in major to periodic review; therefore, u
14、sers are cautioned centres across Canada and inspection and testing to obtain the latest edition from the organizationagencies in eight countries. Since 1919, the preparing the standard.Association has developed the necessary expertise to The responsibility for approving National Standards meet its
15、corporate mission: CSA is an independent of Canada rests with theservice organization whose mission is to provide an Standards Council of Canadaopen and effective forum for activities facilitating the 270 Albert Street, Suite 200exchange of goods and services through the use of Ottawa, Ontario, K1P
16、6N7standards, certification and related services to meet Canadanational and international needs.For further information on CSA services, write toCanadian Standards Association5060 Spectrum Way, Suite 100Mississauga, Ontario, L4W 5N6CanadaAlthough the intended primary application of this Standard is
17、stated in its Scope, it is importantto note that it remains the responsibility of the users to judge its suitability for their particular purpose.Registered trade-mark of Canadian Standards AssociationCAN/CSA-ISO/IEC 13522-8:02 information Part 8: XML notation for ISO/IEC 13522-5Information technolo
18、gy Coding of multimedia and hypermediaDecember 2002 Canadian Standards Association CSA/1CAN/CSA-ISO/IEC 13522-8:02Information technology Coding ofmultimedia and hypermediainformation Part 8: XMLnotation for ISO/IEC 13522-5CSA PrefaceStandards development within the Information Technology sector is h
19、armonized with internationalstandards 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 onInformation Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), t
20、he ISO memberbody for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of theInternational Telecommunication Union (ITU), Canada participates in the International Telegraph andTelephone Consultative Committee (ITU-T).This International Standard was reviewed by the
21、CSA TCIT under the jurisdiction of the StrategicSteering Committee on Information Technology and deemed acceptable for use in Canada. (Acommittee membership list is available on request from the CSA Project Manager.) From time to time,ISO/IEC may publish addenda, corrigenda, etc. The CSA TCIT will r
22、eview these documents for approvaland publication. For a listing, refer to the CSA Information Products catalogue or CSA Info Update orcontact a CSA Sales representative. This Standard has been formally approved, without modification, bythe Technical Committee and has been approved as a National Sta
23、ndard of Canada by the StandardsCouncil of Canada.December 2002 Canadian Standards Association 2002All rights reserved. No part of this publication may be reproduced in any form whatsoever without the priorpermission of the publisher. ISO/IEC material is reprinted with permission. Where the words “t
24、hisInternational Standard” appear in the text, they should be interpreted as “this National Standard ofCanada”. Inquiries regarding this National Standard of Canada should be addressed to Canadian Standards Association 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727
25、 416-747-4044www.csa.caReference numberISO/IEC 13522-8:2001(E)ISO/IEC 2001INTERNATIONALSTANDARDISO/IEC13522-8First edition2001-05-15Information technology Coding ofmultimedia and hypermedia information Part 8:XML notation for ISO/IEC 13522-5Technologies de linformation Codage de linformation multimd
26、ia ethypermdia Partie 8: Notation XML pour lISO/CEI 13522-5ISO/IEC 13522-8:2001(E)PDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall notbe edited unless the typefaces which are embedded are licensed to
27、and installed on the computer performing the editing. In downloading thisfile, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in thisarea.Adobe is a trademark of Adobe Systems Incorporated.Details of the software
28、products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameterswere optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely eventthat a problem relating to it is found
29、, please inform the Central Secretariat at the address given below. ISO/IEC 2001All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronicor mechanical, including photocopying and microfilm, without permission in
30、 writing from either ISO at the address below or ISOs member bodyin the country of the requester.ISO copyright officeCase postale 56 Gb7 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.chWeb www.iso.chii ISO/IEC 2001 All rights reserved ISO/IEC 2001 All rights reserve
31、d iiiPageContentsForeword.ivIntroduction.v1 Scope.12 Conformance13 Normativereferences14 Termsanddefinitions15 Symbolsandabbreviatedterms.26 Structure.27 Requirements.2AnnexA(normative)XMLDTDforISO/IEC13522-5.3A.1DTD3AnnexB(informative)SampleobjectscodedinXML.18B.1 Introduction18B.2 Applicationobjec
32、t18B.3 Sceneobject.19AnnexC(informative)DTDvalidation.20ISO/IEC 13522-8:2001(E)iv ForewordISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission)form the specialized system for worldwide standardization. National bodies that are members of ISO
33、 or IECparticipate in the development of International Standards through technical committees established by therespective organization to deal with particular fields of technical activity. ISO and IEC technical committeescollaborate in fields of mutual interest. Other international organizations, g
34、overnmental and non-governmental, inliaison with ISO and IEC, also take part in the work.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC
35、JTC 1.Draft International 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
36、of this part of ISO/IEC 13522 may be the subject ofpatent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights.International Standard ISO/IEC 13522-8 was prepared by Joint Technical Committee ISO/IEC JTC 1, Informationtechnology, Subcommittee SC 29, Coding
37、of audio, picture, multimedia and hypermedia information. It is based onthe normative content of ISO/IEC 13522-5:1997, in constituting a new notation of MHEG-5 classes.ISO/IEC 13522 consists of the following parts, under the general title Information technology Coding ofmultimedia and hypermedia inf
38、ormation:Gbe Part 1: MHEG object representation Base notation (ASN.1)Gbe Part 3: MHEG script interchange representationGbe Part 4: MHEG registration proceduresGbe Part 5: Support for base-level interactive applicationsGbe Part 6: Support for enhanced interactive applicationsGbe Part 7: Interoperabil
39、ity and conformance testing for ISO/IEC 13522-5Gbe Part 8. XML Notation for ISO/IEC 13522-5Annex A forms a normative part of this part of ISO/IEC 13522. Annexes B and C are for information only.ISO/IEC 13522-8:2001(E) ISO/IEC 2001 All rights reservedvIntroductionThis part of ISO/IEC 13522 specifies
40、a third formalnotation based on XML for ISO/IEC 13522-5:1997.At present the normative components of ISO/IEC 13522-5:1997 are unambiguously expressed in ASN.1 and EBNFtextualNotation. Both of these formats are wellknown to most software specialists. But it is thought that thestandard would attract a
41、wider user community if a more familiar markup language was used to express theelements of the Standard. XML has been suggested as the appropriate markup language to use because a verylarge number of WWW authors already use HTML; and both XML and HTML have a common ancestor in SGML.Many applications
42、 or application components may be retrieved from the Internet or written by persons who know oruse HTML document formats; thus an MHEG-5 engine capable of processing objects expressed in XML wouldappealto a wide audience of potentialusers. Materialstored on Intranet servers in XML format might also
43、be easilyand quickly inserted into broadcast applications. In addition it is expected that the WWW and MHEG technologieswill eventually merge. Hence an XML version of MHEG-5 may be consistent with this process when it begins totake place.In XML, a DTD (Document Type Definition) defines a verifiable
44、syntax for a class of XML documents. This part ofISO/IEC 13522 expresses a DTD defining a notation for encoding MHEG-5 objects; this DTD is given in Annex A.ISO/IEC 13522-8:2001(E) ISO/IEC 2001 All rights reservedINTERNATIONAL STANDARD ISO/IEC 13522-8:2001(E)1Information technology Coding of multime
45、dia and hypermediainformationPart8:1 ScopeISO/IEC 13522-5:1997 specifies two functionally equivalent notations for MHEG-5 objects in Annexes A and B ofthat document. This part of ISO/IEC 13522 specifies a third functionally equivalent notation for MHEG-5 objects inXML 1.0 (“Extensible Markup Languag
46、e“ as recommended by World Wide Web Consortium, W3C). Thisspecification is unambiguously expressed in the DTD contained in Annex A.This part of ISO/IEC 13522 in no way invalidates or substitutes for any clauses of ISO/IEC 13522-5:1997.2 ConformanceThispartofISO/IEC13522definesanalternativenotationto
47、thosedefinedinAnnexesAandBofISO/IEC13522-5:1997. Therefore, no new conformance requirements are imposed on ISO/IEC 13522-5:1997.However the DTD specified in this part of ISO/IEC 13522-5:1997 is required to validate any MHEG-5 applicationwritteninXML.3 NormativereferencesThe following normative docum
48、ents contain provisions which, through reference in this text, constitute provisions ofthis part of ISO/IEC 13522. For dated references, subsequent amendments to, or revisions of, any of thesepublicationsdonotapply.However,partiestoagreementsbasedonthispart of ISO/IEC 13522 areencouragedtoinvestigat
49、e the possibility of applying the most recent editions of the normative documents indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO and IECmaintain registers of currently valid International Standards.ISO/IEC13522-5:1997,InformationtechnologyCodingofmultimediaandhypermediainformationPart5:Supportfor base-level interactiveapplications.Extensible MarkupLanguage(XML) 1.0, W3C Recommendation, 10th-February-1998.4 TermsanddefinitionsFor the purposes of t
