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1、 Reference number ISO/IEC 21000-3:2003/Amd.1:2007(E) ISO/IEC 2007 INTERNATIONAL STANDARD ISO/IEC 21000-3 First edition 2003-04-01 AMENDMENT 1 2007-02-01 Information technology Multimedia framework (MPEG-21) Part 3: Digital Item Identification AMENDMENT 1: Related identifier types Technologies de lin
2、formation Cadre multimdia (MPEG-21) Partie 3: Identification des lments numriques AMENDEMENT 1: Types didentificateurs lis Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007
3、 22:26:48 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 21000-3:2003/Amd.1:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefa
4、ces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Sys
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6、 event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 2007 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 ph
7、otocopying and microfilm, without permission in writing from either ISO at the address below or ISOs 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 copyrightiso.org Web www.iso.org Published in S
8、witzerland ii ISO/IEC 2007 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 22:26:48 MDTNo reproduction or networking permitted without license from IH
9、S -,-,- ISO/IEC 21000-3:2003/Amd.1:2007(E) ISO/IEC 2007 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
10、ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates
11、 closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards.
12、 Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this
13、document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Amendment 1 to ISO/IEC 21000-3:2006 was prepared by Technical Committee ISO/IEC/TC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia an
14、d hypermedia information. This Amendment provides the ability to express the relationship between different identifiers in the context of MPEG-21 Digital Items and contains information on how to deal with varying levels of functional granularity with respect to the identification of Digital Items. T
15、he Amendment also updates information on ISO 15706-2 (ISAN), which has recently been approved as an International Standard. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/200
16、7 22:26:48 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 22:26:48 MDTNo reproduction or networ
17、king permitted without license from IHS -,-,- ISO/IEC 21000-3:2003/Amd.1:2007(E) ISO/IEC 2007 All rights reserved 1 Information technology Multimedia framework (MPEG-21) Part 3: Digital Item Identification AMENDMENT 3: Related identifier types In Clause 1, insert new bullet between the 2nd and 3rd b
18、ullet with the following text: How to express the relationship between the two above identifiers; How to deal with varying levels of functional granularity for Digital Item identifiers; Replace the entire text of subclause 1.1 with the following text: This specification contains five Clauses and fiv
19、e Annexes: The remainder of this Clause 1 contains an overview of MPEG-21 Digital Items and the relation between parts 2 and 3 of ISO/IEC 21000. Clauses 2 and 3 contain normative references and a list of applicable terms and definitions. Clause 4 specifies how to uniquely identify Digital Items, how
20、 to associate related identifiers with Digital Items and how to identify different types of Digital Items. Clause 5 then specifies how to associate metadata with Digital Items by using description scheme identifiers. Annex A contains criteria that need to be fulfilled by a Registration Authority tha
21、t is required for the identification of Digital Items and their parts as specified in ISO/IEC 21000-3. Annex B contains an example of how to resolve a unique identifier to appropriate metadata. Annex C contains a list of existing identification schemes that can be used by this specification. Annex D
22、 provides an approach to dealing with varying functional granularities for identifying Digital Items. Finally, Annex E contains information of patent statements relating to ISO/IEC 21000-3. While Annex A is normative, Annexes B, C, D and E are informative. In Clause 2, insert the following reference
23、: ISO/IEC 21000-6, Information technology Multimedia framework (MPEG-21) Rights Data Dictionary In subclause 3.1, insert definition for the term “Functional Granularity” as follows: The principle of Functional Granularity states that it shall be possible to uniquely identify a Digital Item whenever
24、it needs to be distinguished from another Digital Item. Functional Granularity of identification can differ from User to User. In subclause 3.1, insert definition for the term “Relator” as follows: A term that describes the relationship between two entities. NOTE This definition is equivalent to the
25、 definition in ISO/IEC 21000-6. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 22:26:48 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC
26、 21000-3:2003/Amd.1:2007(E) 2 ISO/IEC 2007 All rights reserved Replace the entire text of subclause 4.2 with the following text: 4.2 RelatedIdentifier Element While the Identifier element is intended to enable the unique identification of Digital Items (or parts thereof), the RelatedIdentifier eleme
27、nt conveys identification information that is related to the Digital Item (or parts thereof) which may be required by certain Users. This relationship is expressed through the use of Relators as defined in ISO/IEC 21000-6. One example of this is the identification of an abstraction of the work (e.g.
28、 composition used when creating a sound recording). 4.2.1 Syntax 4.2.2 Semantics The RelatedIdentifier element allows associating identifiers that are related to the Digital Item, container, component, and/or fragment thereof but do not directly identify the Digital Item (or part thereof). The value
29、 shall be in the form of a URI. A Registration Authority is set up for maintaining a list of identification schemes to be used within ISO/IEC 21000-3. Requirements for the Registration Authority can be found in Annex A of ISO/IEC 21000-3. Values of the RelatedIdentifier element are not required to b
30、e registered with the Registration Authority to be conformant to Clause 4.2 of ISO/IEC 21000-3. The RelatedIdentifier element shall not be used for identifying the Digital Item (or part thereof) itself. This shall be done using the Identifier element. The relationshipType attribute enables expressin
31、g the relationship of the Resource identified by a RelatedIdentifier to the Digital Item (or part thereof) bearing the RelatedIdentifier. The value shall be in the form of a URI. A Relator shall be identified with a URI of the form urn:mpeg:mpeg21:2002:01-RDD-NS:x, as specified in ISO/IEC 21000-6. 4
32、.2.3 Example See Figure 7 for a specific example for the RelatedIdentifier element. Replace the text of subclause 4.3.1 by the following text: Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not fo
33、r Resale, 10/07/2007 22:26:48 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 21000-3:2003/Amd.1:2007(E) ISO/IEC 2007 All rights reserved 3 The Type element shall only appear as a child element of a Statement that shall appear as a child element of a Descriptor that
34、 shall appear as a child element of an Item. Replace the text of subclause 4.3.2 by the following text: The Type element will allow identifying special types of Digital Items. Such types can be defined, for example, by different parts of ISO/IEC 21000 or ISO/IEC 23000. In subclause 4.4, replace sche
35、ma definition by the following Schema text: Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 22:26:48 MDTNo reproduction or networking permitted without license from IHS -
36、,-,- ISO/IEC 21000-3:2003/Amd.1:2007(E) 4 ISO/IEC 2007 All rights reserved In subclause 4.5.4, replace the example by the following: urn:mpegRA:mpeg21:dii:doi:10.1000/123456789 urn:mpegRA:mpeg21:dii:iswc:T-034.524.680-1 Replace C.7 with the following text: ISO 15706-2 was developed within Technical
37、Committee ISO/TC 46, Information and Documentation, Subcommittee SC 9, Identification and Description. The project was initiated by the Society of Motion Picture and Television Engineers (SMPTE) and developed originally as ISO 20925 but has now been standardised as ISO 15706-2. This International St
38、andard specifies a system for version identification of audiovisual works to be used in conjunction with the International Standard Audiovisual Number (ISAN) defined in ISO 157061). An ISAN combined with the version identifier specified in Clause 4 of the ISAN Standard shall be known as a V-ISAN. A
39、V-ISAN shall be a registered, globally unique identifier of a version of an audiovisual work. A V-ISAN identifies a specific version of an audiovisual work throughout its life and is intended for use wherever precise and unique identification of a specific version of an audiovisual work would be des
40、irable, such as in audiovisual production and distribution systems and in broadcasting applications. A V-ISAN identifies a specific version of an audio-visual work as the unique compound of its component elements (e.g. its artistic content, languages, editing, and technical format) throughout its li
41、fe and independent of any physical form in which the version is distributed. The assignment of a V-ISAN to a version of an audiovisual work shall not be used as evidence of the ownership of rights to either that version or to the audiovisual work itself.” 1) Originally known as ISO 15706:2002. The s
42、tandard will be renamed ISO 15706-1 in the next version. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 22:26:48 MDTNo reproduction or networking permitted without licen
43、se from IHS -,-,- ISO/IEC 21000-3:2003/Amd.1:2007(E) ISO/IEC 2007 All rights reserved 5 Add a new informative Annex D between current Annexes C and D as follows. Renumber Annex D as Annex E and change all references accordingly: Annex D (informative) Using ISO/IEC 21000-3 in the MPEG-21 Multimedia F
44、ramework D.1 Overview The Digital Item is the fundamental unit of distribution and transaction within the MPEG-21 Multimedia Framework. As such it is axiomatic that it must meet the requirements of those wishing to use Digital Items as part of their distribution and usage processes. When a User crea
45、tes a Digital Item containing a set of Digital Resources, a unique identifier for the Item is assigned. Following the assignment of the identifiers, it is intended that other Users should always identify the Digital Item by its originally assigned identifier. However, in some environments, some User
46、s may need to distinguish between different “variants” of a single Digital Item that are identified by a single Digital Item Identifier. Thus, a single Digital Item Identifier will not be sufficient for all Users on its own even if, for the creator of the Item, the different variants represent exact
47、ly the same Digital Item. Concrete Specific examples of this generic problem are given below. Example 1 Libraries A text publisher creates an eBook with one resource (e.g. a PDF file) and assigns a unique identifier for this eBook. An electronic library, responsible for preserving this eBook, create
48、s a Digital Item (by generating a Digital Item Declaration file containing relevant metadata and, a reference to the PDF file) and adds the publisher-generated identifier say a DOI as the Digital Item Identifier). Following the removal of a couple of typographic errors in the original resource, the library receives an updated version of the eBook albeit with the same DOI. This is, from the publishers perspective, correct as the “new version” is commercially the same