1、BS ISO/IEC 24751-3:2008 ICS 03.100.30; 35.240.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Information technology Individualized adaptability and accessibility in e- learning, education and training - Part 3: “Access for all” digital resource description
2、This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 BSI 2008 ISBN 978 0 580 56062 0 Amendments/corrigenda issued since publication Date Comments BS ISO/IEC 24751-3:2008 National foreword This British Standard is the UK implementation of ISO/IE
3、C 24751-3. The UK participation in its preparation was entrusted to Technical Committee IST/43, Information technology for learning, education and training. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include
4、 all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. December 2008BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008Reference number ISO/IEC 24751-3:2008(
5、E) ISO/IEC 2008INTERNATIONAL STANDARD ISO/IEC 24751-3 First edition 2008-10-01 Information technology Individualized adaptability and accessibility in e-learning, education and training Part 3: “Access for all” digital resource description Technologies de linformation Adaptabilit et accessibilit ind
6、ividualises en e-apprentissage, en ducation et en formation Partie 3: Description des ressources numriques relatives accs pour tous BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 ISO/IEC 24751-3:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordan
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9、. 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. COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2008 All rights reserved. Unless otherwis
10、e 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 the country of the requester. ISO copyright of
11、fice 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 Switzerland ii ISO/IEC 2008 All rights reservedBS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 ISO/IEC 24751-3:2008(E) ISO/IEC 2008 All rig
12、hts reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Symbols and abbreviations5 5 Basic Principles.6 5.1 Assumptions6 5.2 Original and Adapted Resources.6 5.3 Access For All Resource Metadata .7 5.4 Access Mode7 5.5 Adaptability 8 5.6
13、 The Importance of Interoperability and Consistent Implementation .9 6 Access For All Digital Resource Description (DRD) Information Model .10 6.1 Access For All Digital Resource Description .10 6.2 Access Mode Statement .10 6.3 Is Adaptation11 6.4 Adaptation Statement .11 7 Attribute Descriptions a
14、nd Recommended Use.11 8 Extending the Standard 15 9 Conformance .15 Annex A (normative) Consolidated List of Terms and Definitions with Cultural Adaptability: ISO French Equivalents 16 A.1 Introduction16 A.2 ISO English and ISO French.16 A.3 Cultural adaptability and quality control.16 A.4 List of T
15、erms in French Alphabetical Order .17 A.5 Organization of Annex A.6, “Consolidated matrix of terms and definitions ISO French equivalents” 18 A.6 Consolidated Matrix of ISO/IEC 24751-3 Terms and Definitions in ISO French19 Annex B (normative) Vocabulary Codes 23 B.1 Access Mode Usage Vocabulary Code
16、s .23 B.2 Display Transformability Vocabulary Codes23 B.3 Extent Vocabulary Codes .25 Annex C (informative) Recommended Default Values 26 Annex D (informative) Bindings and Implementations .27 Annex E (informative) Scenarios.28 E.1 Scenario 1: Discovery and Retrieval of Alternate Training Content 28
17、 E.2 Scenario 2: Customization of Information about a Prescription28 E.3 Scenario 3: Extreme Instructional Environments 28 E.4 Scenario 4: Creating a Repository for Federated Searching29 Annex F (informative) Implementation Example30 F.1 TILE Low Vision Example.30 F.2 TILE Caption Example.33 Annex G
18、 (informative) List of contributors.37 Bibliography38 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 ISO/IEC 24751-3:2008(E) iv ISO/IEC 2008 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commi
19、ssion) 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 technical activity. ISO
20、 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 technical committee, ISO
21、/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 circulated to nationa
22、l 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 held responsible for
23、identifying any or all such patent rights. ISO/IEC 24751-3 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 36, Information technology for learning, education, and training. ISO/IEC 24751 consists of the following parts, under the general title Informa
24、tion technology Individualized adaptability and accessibility in e-learning, education and training: Part 1: Framework and reference model Part 2: “Access for all” personal needs and preferences for digital delivery Part 3: “Access for all” digital resource description Future parts will address non-
25、digital resource description, personal needs and preferences for non-digital resources, personal needs and preferences for description of events and places, digital description of events and places, and language accessibility and human interface equivalencies (HIEs) in e-learning applications. BS IS
26、O/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 ISO/IEC 24751-3:2008(E) ISO/IEC 2008 All rights reserved vIntroduction In this part of ISO/IEC 24751, the term disability is defined as a mismatch between the needs of the user and the resource offered. It is not a personal trait the
27、refore but an artifact of the relationship between the user and the resource environment or delivery. Accessible systems adjust the user interface of the learning environment, locate needed resources, evaluate the properties of the available resources to match the needs and preferences of the user,
28、and deliver to the learner the most accessible content available. This part of ISO/IEC 24751 defines accessibility metadata that is able to express a resources ability to match the needs and preferences of a user, as described by their access for all personal needs and preferences (PNP), already def
29、ined in ISO/IEC 24751-2. This part of ISO/IEC 24751 is intended to benefit anyone experiencing a mismatch between needs and preferences and education delivered. For people with disabilities, whose choice of access modalities is restricted, the process of matching a resource with a user requirement i
30、s not a matter of convenience or refinement, but one of utmost importance in ensuring access. As a result, it is necessary for systems to agree upon well-defined interfaces and usage. This closely defined approach is taken by this part of ISO/IEC 24751 to support optimum interoperability. This part
31、of ISO/IEC 24751 is not judgmental but informative. The purpose is to facilitate the discovery and use of the most appropriate content for each user. Users of alternative access systems need to know whether a resource is compatible with their required access method, e.g. a user who is blind may need
32、 audible access to a resource as opposed to visual access. This part of ISO/IEC 24751 does not describe how to create accessible content; other work has been completed that describes how content and media objects can be made more accessible see, for example, W3C/WAI Web Content Accessibility Guideli
33、nes (W3C/WAI WCAG) for details. BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 INTERNATIONAL STANDARD ISO/IEC 24751-3:2008(E) ISO/IEC 2008 All rights reserved 1Information technology Individualized adapta
34、bility and accessibility in e-learning, education and training Part 3: “Access for all” digital resource description 1 Scope ISO/IEC 24751 is intended to meet the needs of learners with disabilities and anyone who is disabled by their context. This part of ISO/IEC 24751 provides a common language to
35、 describe digital learning resources to facilitate matching of those resources to learners accessibility needs and preferences. Metadata can be used for at least two accessibility-related purposes: to record compliance to an accessibility specification or standard (e.g. for adherence to legislated p
36、rocurement policies) and to enable the delivery of resources that meet a users needs and preferences. This part of ISO/IEC 24751 addresses the latter purpose. Metadata to assert compliance to an accessibility specification or standard is not within the scope of this part of ISO/IEC 24751. This part
37、of ISO/IEC 24751 is intended to be applied in combination with ISO/IEC 24751-2, which provides a means to describe how a user desires to access online learning content and related applications. This part of ISO/IEC 24751 is intended to describe aspects of a computer system (including networked syste
38、ms) that can be adjusted to improve accessibility. They are not intended to address non-digital systems that can include physical location, other people, external processes, etc. This part of ISO/IEC 24751 focuses on the description of the characteristics of the resource that affect how it can be pe
39、rceived, understood or interacted with by users, including a) what sensory modalities are used in the resource, b) ways in which the resource is adaptable, i.e. whether text can be transformed automatically, c) which methods of input the resource accepts, and d) what adaptations are available. This
40、part of ISO/IEC 24751 provides an information model for describing learning resources so that individual learner preferences and needs (described according to ISO/IEC 24751-2) can be matched with the appropriate user interfaces, tools and learning resources within a computer-mediated learning enviro
41、nment. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 639-2:1998 (E/F
42、), Codes for the representation of names of languages Part 2: Alpha-3 code/Codes pour la reprsentation des noms de langue Partie 2: Code alpha-3 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 ISO/IEC 24751-3:2008(E) 2 ISO/IEC 2008 All rights reservedISO/IEC 24751-1:2008 (E/F
43、), Information technology Individualized adaptability and accessibility in e-learning, education and training Part 1: Framework and reference model/Technologies de linformation Adaptabilit et accessibilit individualises en e-apprentissage, en ducation et en formation Partie 1: Cadre et modle de rfre
44、nce ISO/IEC 24751-2:2008 (E), Information technology Individualized adaptability and accessibility in e-learning, education and training Part 2: “Access for all” personal needs and preferences for digital delivery 3 Terms and definitions For the purposes of this document, the following terms and def
45、initions apply. 3.01 access for all AfA approach to providing accessibility in a computer-mediated environment in which the digital resources and their method of delivery are matched to the needs and preferences of the user ISO/IEC 24751-1:2008 (2.1) 3.02 accessibility usability of a product, servic
46、e, environment or facility by individuals with the widest range of capabilities NOTE 1 Although “accessibility“ typically addresses users who have a disability, the concept is not limited to disability issues. NOTE 2 Adapted from ISO/TS 16071:2003 (3.2). 1)3.03 access mode human sense perceptual sys
47、tem or cognitive faculty through which a user may process or perceive the content of a digital resource ISO/IEC 24751-1:2008 (2.3) 3.04 adaptability e-learning ability of a digital resource or delivery system to adjust the presentation, control methods, structure, access mode, and user supports when
48、 delivered ISO/IEC 24751-1:2008 (2.4) 3.05 adaptation e-learning digital resource that presents the intellectual content of all or part of another digital resource NOTE Adaptations can also include the adjustment of the presentation, control methods, access modes, structure and user supports. ISO/IE
49、C 24751-1:2008 (2.5) 1) The source for this adapted definition from ISO/TS 16071:2003 is now ISO/IEC 24751-1:2008 (2.2). BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 BS ISO/IEC 24751-3:2008 ISO/IEC 24751-3:2008(E) ISO/IEC 2008 All rights reserved 33.06 adaptation coverage specification of the nature or genre of the adaptation EXAMPLE Caption, tactile representation, visual representation, etc. NOTE See the coded domain in ISO/IEC 24751-2:2008, B.2. 3.07 adaptation type nature
