1、 ISO/IEC 2012. CSA Group 2014. All rights reserved. Unauthorized reproduction is strictly prohibited.CAN/CSA-ISO/IEC 40500:14(ISO/IEC 40500:2012, IDT)National Standard of CanadaCAN/CSA-ISO/IEC 40500:14InformationtechnologyW3C Web ContentAccessibility Guidelines(WCAG) 2.0(ISO/IEC 40500:2012, IDT)Lega
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36、tario, K1P 6N7CanadaCette Norme Nationale du Canada nest disponible quen anglais. Le Groupe CSA publiera la version en franais ds quelle sera produite parlorganisme rdacteur.Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remainsthe
37、responsibility of theusers to judge its suitability for their particular purpose.TMA trade-mark of the Canadian Standards Association, operating as “CSA Group”ICS 35.080ISBN 978-1-77139-519-9 2014 CSA GroupAll rights reserved.No part of this publication may be reproduced to any form whatsoever witho
38、utthe prior permission of the publisher.Published in March 2014 by CSA GroupA not-for-profit private sector organization5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6To purchase standards and related publications, visit our Online Store at shop.csa.caor call toll-free 1-800-463-6
39、727 or 416-747-4044.TMA trade-mar k of the Canadian S tandards Association, operating as “CSA Group”Reviewed byPrepared byInternational Organization for Standardization/International Electrotechnical CommissionApproved byInformationtechnology W3C WebContent AccessibilityGuidelines (WCAG) 2.0(ISO/IEC
40、 40500:2012,IDT)CAN/CSA-ISO/IEC 40500:14National Standard of CanadaCAN/CSA-ISO/IEC40500:14Information technology W3C Web Content AccessibilityGuidelines (WCAG) 2.0March 2014 2014 CSA GroupCSA/5CAN/CSA-ISO/IEC40500:14Informationtechnology W3C WebContent AccessibilityGuidelines (WCAG) 2.0(ISO/IEC 4050
41、0:2012,IDT)CSA PrefaceStandards development within the Information Technology sector is harmonized 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 Committ
42、ee 1 onInformation Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member bodyfor 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 and
43、Telephone Consultative Committee (ITU-T).For brevity, this Standard will be referred to as “CAN/CSA-ISO/IEC 40500” throughout.At the time of publication, ISO/IEC 40500:14 is available from ISO and IEC in English only. CSA Group willpublish the French version when it becomes available from ISO and IE
44、C.This International Standard was reviewed by the TCIT under the jurisdiction of the Strategic SteeringCommittee on Information Technology and deemed acceptable for use in Canada. From time to time,ISO/IEC may publish addenda,corrigenda, etc. The TCIT will review these documents for approval andpubl
45、ication. For a listing, refer to the Current Standards Activities page at standardsactivities.csa.ca. ThisStandard has been formally approved, without modification, by the Technical Committee and has beenapproved as a National Standard of Canada by the Standards Council of Canada. 2014 CSA GroupAll
46、rights reserved.No part of this publication may be reproducedin any form whatsoeverwithout theprior permission of the publisher. ISO/IEC material is reprinted with permission. Where the words “thisInternational Standard” appear in the text, they should be interpreted as “this National Standard ofCan
47、ada”.Inquiries regarding this National Standard of Canada should be addressed toCSA Group5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada, L4W 5N61-800-463-6727 416-747-4000http:/csa.caTo purchase standards and related publications, visit our Online Store at shop.csa.caor call toll-free1-8
48、00-463-6727or 416-747-4044.This Standard is subject to review five years from the date of publication, and suggestions for itsimprovementwill be referred to the appropriate committee. To submit a proposal for change, please sendCAN/CSA-ISO/IEC40500:14Information technology W3C Web Content Accessibil
49、ityGuidelines (WCAG) 2.0March 2014 2014 CSA GroupCSA/6the following information to inquiriescsagroup.organd include “Proposal for change” in the subjectline:a) Standard designation (number);b) relevant clause,table, and/or figure number;c) wording of the proposed change; andd) rationale for the change.CSA Technical Committeeon InformationTechnologyJ. MacFie Microsoft Canada,Ottawa, OntarioRepresenting Producer InterestChairS. Michell Maurya Software Inc.,Ottawa, OntarioRepresenting User InterestVice-ChairJ. Brub IDEgenic Inc.,Gatineau, Qube
