BS ISO IEC 29136-2012 Information technology User interfaces Accessibility of personal computer hardware《信息技术 用户接口 个人计算机硬件的可访问性》.pdf

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1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO/IEC 29136:2012 Information technology - User interfaces - Accessibility of personal computer hardwareBS ISO/IEC 29136:2012 BRITISH STANDARD National foreword This Briti

2、sh Standard is the UK implementation of ISO/IEC 29136:2012. The UK participation in its preparation was entrusted to Technical Committee ICT/-/6, ICT Accessibility Co-ordination. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does

3、not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012 ISBN 978 0 580 71524 2 ICS 11.180.99; 35.240.20 Compliance with a British Standard cannot confer immun

4、ity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2012. Amendments issued since publication Date Text affectedBS ISO/IEC 29136:2012Reference number ISO/IEC 29136:2012(E) ISO/IEC 2012INTERNATIONAL STANDARD ISO/

5、IEC 29136 First edition 2012-05-01 Information technology User interfaces Accessibility of personal computer hardware Technologies de linformation Interfaces utilisateur Accessibilit matrielle des ordinateurs personnels BS ISO/IEC 29136:2012 ISO/IEC 29136:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO/IEC

6、 2012 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 photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the

7、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 Switzerland ii ISO/IEC 2012 All rights reservedBS ISO/IEC 29136:2012 ISO/IEC 29136:2012(E) ISO/IEC 2012 All rights reserv

8、ed iiiContents Page Foreword iv Introduction . v 1 Scope 1 2 Normative references 1 3 Terms and definitions . 2 4 Conformance . 3 4.1 Applying the requirements . 3 4.2 Applying the recommendations . 3 4.3 Evaluation of products 3 5 General requirements . 3 5.1 Requirements related to ICT 3 5.2 Requi

9、rements related to software . 3 5.3 Requirements related to interoperability with assistive technologies 3 5.4 Avoidance of erroneous operations and support of easy operations . 3 5.5 Functionality provided as hardware support . 4 5.6 Using readable labels 5 5.7 Connection . 5 5.8 Alternative to bio

10、metric-based user authentication 7 5.9 User comfort 7 6 Requirements for input . 7 6.1 Controls 7 6.2 Keyboard 8 6.3 Touch screen . 10 7 Requirements for output. 10 7.1 Visual information . 10 7.2 Auditory information . 11 8 Requirements for data storage devices and removable drives 12 8.1 Insertion

11、 and removal of a media and change of a drive 12 8.2 Notification of media insertion . 12 9 Requirements for user support 13 9.1 Product information 13 9.2 Disclosure of information to distribution channel . 14 9.3 Customer support . 14 9.4 Maintenance information 14 Annex A (informative) Sample pro

12、cedure for assessing applicability and conformance . 15 Bibliography 25 BS ISO/IEC 29136:2012 ISO/IEC 29136:2012(E) iv ISO/IEC 2012 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system

13、 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 and IEC technical committees coll

14、aborate 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/IEC JTC 1. International Standard

15、s 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 national bodies for voting. Publication a

16、s 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 identifying any or all such patent

17、 rights. ISO/IEC 29136 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 35, User interfaces. BS ISO/IEC 29136:2012 ISO/IEC 29136:2012(E) ISO/IEC 2012 All rights reserved vIntroduction With the progress of the information society, personal computers hav

18、e become a necessary tool for many people in their daily life. A wide range of people, regardless of their ages, physique, physical ability or disability, use personal computers throughout their life, i.e. at home, in school, in the workplace, and in public places. This International Standard provid

19、es guidance to improve information accessibility for older persons and persons with disabilities (including temporary disabilities) when they use personal computers. The guidelines in this International Standard use the following approach. When planning, developing, designing, and distributing perso

20、nal computers, this International Standard can be referenced to improve accessibility for older persons and persons with disabilities. If the required degree of accessibility cannot be provided by a default configuration of a personal computer, such accessibility might be attained by using the produ

21、ct in combination with additional software, optional equipment and/or assistive technology. This International Standard elaborates on hardware-related guidance provided in ISO/IEC Guide 71:2001, Guidelines for standards developers to address the needs of older persons and persons with disabilities,

22、ISO 9241-20:2008, Ergonomics of human-system interaction Part 20: Accessibility guidelines for information/communication technology (ICT) equipment and services, and ISO/IEC TR 29138-1, Information technology Accessibility considerations for people with disabilities Part 1: User needs summary. The h

23、ardware guidance in this International Standard can be used in combination with ISO 9241-171:2008, Ergonomics of human-system interaction Part 171: Guidance on software accessibility. BS ISO/IEC 29136:2012BS ISO/IEC 29136:2012 INTERNATIONAL STANDARD ISO/IEC 29136:2012(E) ISO/IEC 2012 All rights rese

24、rved 1Information technology User interfaces Accessibility of personal computer hardware 1 Scope This International Standard provides requirements and recommendations for the accessibility of personal computer hardware, to be used when planning, developing, designing and distributing these computers

25、. Some requirements or recommendations in this International Standard require software support. While this International Standard does not cover the behaviour of, or requirements for, assistive technologies, it does address connectivity of assistive technologies as an integrated component of interac

26、tive systems. Requirements and recommendations that solely focus on software are not included in this International Standard. NOTE 1 Requirements and recommendations for software accessibility are specified in ISO 9241-171. NOTE 2 High level requirements and recommendations for information and commu

27、nication technology (ICT) accessibility are specified in ISO 9241-20. NOTE 3 Requirements and recommendations for office equipment accessibility, including printers, scanners and copiers, are specified in ISO/IEC 107792. 2 Normative references The following referenced documents are indispensable for

28、 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 9241-20:2008, Ergonomics of human-system interaction Part 20: Accessibility guidelines for informatio

29、n/communication technology (ICT) equipment and services ISO 9241-171:2008, Ergonomics of human-system interaction Part 171: Guidance on software accessibility ISO 9241-410:2008, Ergonomics of human-system interaction Part 410: Design criteria for physical input devices ISO/IEC 9995-1, Information te

30、chnology Keyboard layouts for text and office systems Part 1: General principles governing keyboard layouts ISO/IEC 13066-1, Information technology Interoperability with assistive technology (AT) Part 1: Requirements and recommendations for interoperability ISO/IEC 24786:2009, Information technology

31、 User interfaces Accessible user interface for accessibility settings BS ISO/IEC 29136:2012 ISO/IEC 29136:2012(E) 2 ISO/IEC 2012 All rights reserved3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 accessibility interactive system usability of

32、a product, service, environment or facility by people within the widest range of capabilities ISO 9241-20:2008, definition 3.1 NOTE 1 The concept of accessibility addresses the full range of user capabilities and is not limited to users who are formally recognized as having disability. NOTE 2 The us

33、ability-oriented concept of accessibility aims to achieve levels of effectiveness, efficiency and satisfaction that are as high as possible considering the specified context of use, while paying attention to the full range of capabilities within the user population. 3.2 assistive technology AT hardw

34、are or software, added to or incorporated within a system, which increases accessibility for an individual ISO 9241-20:2008, definition 3.2 3.3 control hardware physical actuator which controls the operations of the personal computer or any function thereof NOTE 1 There are various types of hardware

35、 controls, including multi-position controls, power on/off switches and toggle controls. NOTE 2 A key is a specialized type of control which often involves software to achieve its purpose. 3.4 keyguard rigid cover with holes for guiding a finger to the intended keys NOTE Keyguards prevent the unwant

36、ed striking of keys. 3.5 personal computer microcomputer primarily intended for stand-alone use by an individual ISO/IEC 2382-1:1993 3.6 reset initialize a main processor and restart a personal computer to a known state 3.7 usability extent to which a product can be used by specified users to achiev

37、e specified goals with effectiveness, efficiency and satisfaction in a specified context of use ISO 9241-11:1998, definition 3.1 BS ISO/IEC 29136:2012 ISO/IEC 29136:2012(E) ISO/IEC 2012 All rights reserved 34 Conformance 4.1 Applying the requirements This International Standard contains requirements

38、 and recommendations for a variety of personal computer hardware. All requirements in Clauses 5 9 shall be implemented. 4.2 Applying the recommendations Individual recommendations in Clauses 5 - 9 shall be evaluated for their applicability to the particular product. 4.3 Evaluation of products If a p

39、roduct is claimed to conform to this International Standard then the procedures used to establish the products requirements (as identified in Clauses 4.1 and 4.2), and to evaluate the product based on these requirements, shall be specified. The level of detail of the specification is a matter of neg

40、otiation between the involved parties. 5 General requirements 5.1 Requirements related to ICT ISO 9241-20 shall be complied with for hardware issues relating to personal computers. 5.2 Requirements related to software ISO 9241-171 and ISO/IEC 24786 shall be complied with for issues relating to the u

41、se of software to configure and control hardware features of personal computers. 5.3 Requirements related to interoperability with assistive technologies ISO/IEC 13066-1 shall be complied with for issues relating to personal computer hardware interoperability with assistive technologies. 5.4 Avoidan

42、ce of erroneous operations and support of easy operations 5.4.1 Stability of computer cases The pressing of buttons should not cause the computer case to topple or to slip on typical surfaces where they are intended to be used. NOTE Clause 6.1.2 b) specifies forces for pressing buttons. 5.4.2 Positi

43、ons of on/off controls a) A control to turn on/off should be located away from other controls in order to reduce the possibility of accidental activation. b) A control to turn the device on/off should be placed in a position where it is easy to locate and activate but not to activate accidentially.

44、EXAMPLE In a desktop computer the on/off control is positioned in the front of the computer case. BS ISO/IEC 29136:2012 ISO/IEC 29136:2012(E) 4 ISO/IEC 2012 All rights reserved5.4.3 Operation of a latch If a personal computer has a latch, the associated task (e.g. performing an operation while the l

45、atch is open) should be operable with one hand. EXAMPLE A notebook has a latch that is used to remove the battery. This latch and the battery are designed to enable the user to remove the battery using only one hand. 5.4.4 Operation on covers and flaps a) If personal computer hardware has a cover or

46、 a flap, it should be operable with one hand to open and close. b) If personal computer hardware has a cover or a flap for a control, it should be designed to allow users to access the control easily. NOTE A user may access the control with the stick holding in a mouth. EXAMPLE The flap has many rid

47、ges to prevent slipping. 5.5 Functionality provided as hardware support 5.5.1 Turning on/off a) A control to turn on/off shall be independent from other operations except a reset operation. b) A control to turn on/off should be easily recognizable both visually and tactilely. NOTE 1 ISO 24503 provid

48、es the information about tactile discernable controls, either by their shape or by tactile symbols or Braille dots. 3 c) A control to turn on/off should be a push-button. NOTE 2 Push-button controls assist those with reduced motor control and those using head or mouth sticks or other alternative poi

49、nting devices. d) The response to pushing a control to turn off should be configurable by the user. EXAMPLE The user is given the option of choosing between two possibilities for turning off the computer. It can be a short press of the turn off button or a hold and press action on the same button. The second option is useful to make sure that the user really intends to turn off the computer. e) The on/off status should be discernible by visual, aural and tactile means. f) The user should

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