INTERNATIONAL ISO/IEC STANDARD 21000-2 Second edition 2005-10-01 Information technology Multimedia framework (MPEG-21) - Part 2: Digital Item Declaration Technologies de Il'information- Cadre multimédia (MPEG-21) Partie 2: Déclaration d'article numérique Reference number ISO/IEC 21000-2:2005(E) ISo IEC Copyright International Organization for Standardization @ISO/IEC2005 Not for Resale ISO/IEC 21000-2:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's 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 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 care 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 ?ISO/IEC2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in 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 [email protected] Web www.iso.org Published in Switzerland CyrhematinalganzationStandardizato @ ISO/IEC 2005 - All rights reserved nitted without licensefromIHS Not for Resale ISO/IEC 21000-2:2005(E) Contents Page Foreword. Introduction .. vi 1 Scope 2 Normative references . 3 Terms and definitions 4 Symbols and abbreviated terms 2 5 Conventions .. 5.1 Naming convention.. 5.2 Documentation convention 5.3 6 Digital Item Declaration Model 6.1 Purpose and Overview . 6.2 Abstract Model... 6.2.1 Entity Descriptions 6.2.2 container. 6.2.3 item.. 6.2.4 component. 6.2.5 6.2.6 descriptol 6.2.7 condition.. 6.2.8 choice... 6.2.9 selection 6.2.10 annotation. 6.2.11 assertion.. 6.2.12 resource....... 6.2.13 fragment... 6.2.14 statement... 6.2.15 predicate.... 7 Digital Item Declaration Representation... 0 7.1 10 7.1.1 Purpose. 10 7.1.2 DIDL Overview... 10 7.2 DIDL Definition ... 7.2.1 Validation..... 11 7.2.2 Canonicalization 7.2.3 Document modularity 7.2.4 Eiement Descriptions 12 7.2.5 <DIDL> 12 7.2.6 <DIDLInfo> 14 7.2.7 <Declarations> 15 7.2.8 <Container> 15 7.2.9 <Iltem> 17 7.2.10 <Component> 20 7.2.11 <Resource> 22 7.2.12 <Descriptor> 25 7.2.13 <Statement> 27 7.2.14 <Anchor> 31 7.2.15 <Fragment> Copyrght International Organizaionrstandardization Allrights reserved ili ithout license from IHS Not for Resale ISO/IEC 21000-2:2005(E) 7..16 <Choice>.... 7.2.17 <Selection> .38 7.2.18 <Condition> 41 7.2.19 <Annotation> 42 7.2.20 <Assertion>.. ..45 8 The Digital Item Declaration XML Schema Definitions (informative).... 8.1 Purpose and Overview ... .46 8.2 DID Model Abstract Schema .. 47 8.3 DIDL Schema .... 9 Example Digital Items expressed in DIDL ...... 9.1 Example 1: Using MPEG-7 descriptors in conjunction with a Choice... ..57 9.2 Example 2: Expressing the same set of metadata in different descriptor formats.. 59 9.3 Example 3: A digital music album..... .60 9.4 Example 4: Implementing numeric comparisons in Item configuration .. Annex A (informative) Patent statements .... Annex B (informative) Differences with IS0/IEc 21000-2:2003..... B.1 Introduction.. ..82 B.2 Attribute-based descriptors . ..82 B.3 <Resource>. ..82 B.4 <Statement> B.5 <Anchor> and <Fragment> B.6 <Condition>... 83 B.7 <Reference> and XInclude.. B.8 Schema definitions. .85 B.9 Converting a first edition DIDL document to a second edition DIDL document... .86 Bibliography 88 Copyright International Organization for Standardization ISO/IEC 2005-All rights reserved Not for Resale ISO/IEC 21000-2:2005(E) Foreword ISso (th