1、 International Telecommunication Union ITU-T F.790TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (01/2007) SERIES F: NON-TELEPHONE TELECOMMUNICATION SERVICES Audiovisual services Telecommunications accessibility guidelines for older persons and persons with disabilities ITU-T Recommendation F.790 I
2、TU-T F-SERIES RECOMMENDATIONS NON-TELEPHONE TELECOMMUNICATION SERVICES TELEGRAPH SERVICE Operating methods for the international public telegram service F.1F.19 The gentex network F.20F.29 Message switching F.30F.39 The international telemessage service F.40F.58 The international telex service F.59F
3、.89 Statistics and publications on international telegraph services F.90F.99 Scheduled and leased communication services F.100F.104 Phototelegraph service F.105F.109 MOBILE SERVICE Mobile services and multidestination satellite services F.110F.159 TELEMATIC SERVICES Public facsimile service F.160F.1
4、99 Teletex service F.200F.299 Videotex service F.300F.349 General provisions for telematic services F.350F.399 MESSAGE HANDLING SERVICES F.400F.499DIRECTORY SERVICES F.500F.549 DOCUMENT COMMUNICATION Document communication F.550F.579 Programming communication interfaces F.580F.599 DATA TRANSMISSION
5、SERVICES F.600F.699 AUDIOVISUAL SERVICES F.700F.799 ISDN SERVICES F.800F.849 UNIVERSAL PERSONAL TELECOMMUNICATION F.850F.899 HUMAN FACTORS F.900F.999 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. F.790 (01/2007) i ITU-T Recommendation F.790 Telecommunications acc
6、essibility guidelines for older persons and persons with disabilities Summary This Recommendation is intended to provide general guidelines for standardizing, planning, developing, designing and distributing all forms of telecommunications equipment and software and associated telecommunications ser
7、vices to ensure their accessibility for people with the widest possible range of abilities. It gives guidance on understanding the topic of accessibility and the ways that accessibility may be incorporated in products and services. Source ITU-T Recommendation F.790 was approved on 13 January 2007 by
8、 ITU-T Study Group 16 (2005-2008) under the ITU-T Recommendation A.8 procedure. ii ITU-T Rec. F.790 (01/2007) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T)
9、 is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four year
10、s, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the neces
11、sary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However
12、, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equi
13、valents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a c
14、laimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU ha
15、d not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.in
16、t/ITU-T/ipr/. ITU 2007 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. F.790 (01/2007) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 2 4 Abbreviations 2 5 Conventions 2 6 General principl
17、es. 3 7 Requirements for planning, development and design. 3 7.1 Basic policies 3 7.2 Activities concerning development process . 4 8 Common requirements for operation and usage of telecommunications equipment and services. 5 8.1 Operation 5 8.2 Installation, connection and configuration . 6 8.3 Phy
18、sical safety 6 8.4 Information security . 7 8.5 Rights of content usage 7 9 Requirements for terminal equipment 7 9.1 Input/Output interface 7 9.2 Body shapes and structures 9 9.3 External connection ports. 9 9.4 Terminology, icons and graphic symbols. 10 9.5 Alternatives. 10 9.6 Standardization and
19、 disclosure of interface specifications. 10 10 Requirements for telecommunications services . 10 10.1 Interactive telecommunications services 10 10.2 Telecommunications platform services 11 10.3 Emergency calls 11 10.4 Telecommunications services specifications 11 11 Requirements for user support 11
20、 11.1 User manuals 11 11.2 Disclosure of information about telecommunications accessibility. 12 11.3 Instruction. 12 11.4 Customer support centres . 12 Appendix I Further details of informative references. 13 Bibliography 15 iv ITU-T Rec. F.790 (01/2007) Introduction Information and communications t
21、echnology (ICT), in particular the rapid proliferation of the Internet, has provided substantial benefits to the community; but many older persons and persons with disabilities cannot enjoy these benefits due to barriers in using telecommunications products and services. This issue is becoming more
22、serious with the increasing percentage of aging persons worldwide. In response, some nations have developed their own guidelines for telecommunications accessibility. In todays world, however, telecommunications equipment moves freely across national borders. Thus, in order to enhance telecommunicat
23、ions accessibility, telecommunications accessibility guidelines are indispensable not only domestically but also internationally. ITU-T Rec. F.790 (01/2007) 1 ITU-T Recommendation F.790 Telecommunications accessibility guidelines for older persons and persons with disabilities 1 Scope This Recommend
24、ation is intended to provide general guidelines for standardizing, planning, developing, designing and distributing all forms of telecommunications equipment and software and associated telecommunications services (hereinafter referred to collectively as “telecommunications equipment and services“)
25、to ensure their accessibility for people with the widest possible range of abilities including older persons and persons with permanent or temporary disabilities (hereinafter referred to as “older persons and persons with disabilities“). For many years, ITU-T has addressed the needs of persons with
26、disabilities in the development of specific Recommendations. Making telecommunications equipment and services accessible makes sense not only in terms of humanitarian aspects but also in terms of economic aspects. The most obvious reason is the increase in potential customers. Features that make pro
27、ducts and services usable for older persons and persons with disabilities can often make them convenient and easy to use for everyone else. This Recommendation is intended to be part of the overall framework that ITU-T can use in its efforts to support the need for older persons and persons with dis
28、abilities to provide more accessible equipment and services. This Recommendation provides information by identifying problem areas which need to be considered when drafting such Recommendations addressing the needs of older persons and persons with disabilities. In the process of developing those Re
29、commendations, it is necessary to actively involve a broad range of users such as older persons and persons with disabilities and clearly understand user and task requirements. Especially, addressing needs earlier rather than later in the development process is preferable in order to reduce or elimi
30、nate extra cost for developing those Recommendations. Also it is to be noted that an accessible design approach may not resolve everything. Where accessible design cannot fully respond to the needs of older persons and persons with disabilities, in particular in the field of services, the need for p
31、ersonal assistance may still be required. However, the provision of personal assistance should never be relied upon to replace the accessible design approach. Of necessity, guidance provided in this Recommendation is general. It is recognized that additional specific guides need to be developed for
32、specific equipment or service. Though the scope of this Recommendation is given for a development of Recommendations specific to meet the needs of older persons and persons with disabilities, the guidelines described in this Recommendation are expected to be a good reference for producing any other
33、Recommendations in ITU-T to improve telecommunication accessibility. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were v
34、alid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendatio
35、ns is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. 2 ITU-T Rec. F.790 (01/2007) ISO/IEC Guide 71 ISO/IEC Guide 71:2001, Guidelines for standards developers to address the needs of older person
36、s and persons with disabilities. ISO 13407 ISO 13407:1999, Human-centred design processes for interactive systems. 3 Definitions This Recommendation defines the following terms: 3.1 user: End-users of telecommunications products and services are people, groups of people and organizations that use or
37、 consume telecommunications products and services. They are a diverse group, including people, whatever the age or gender, level of income, geographic environment or work activities. End-users, whether they be organizations or people, have varied requirements. See Resolution GSC 11-22 (UWG) on User
38、needs, considerations and involvement. 3.2 disability: In this Recommendation, “disability“ is defined as a state when use of telecommunications equipment and services is restricted. Mainly, “disability“ is viewed as a result of temporary or permanent functional limitation due to disease, accident,
39、ageing and so on. More generally, “disability“ includes a state when full use of telecommunications equipment and services is not possible due to the physical and/or social environment (e.g., voice telephony under noisy environment). NOTE For more detailed information about the definition of “disabi
40、lity“, please refer to appropriate documents such as WHO ICF (World Health Organization International Classification of Functioning, Disability and Health). 3.3 telecommunications equipment: Any machine, device, line or other form of equipment used to perform telecommunications operations. 3.4 telec
41、ommunications services: Services provided to users via the use of telecommunications equipment. 3.5 interactive telecommunications services: Services designed to enable the two-way exchange of information between multiple users in multiple locations via telecommunications equipment such as exchanges
42、 and network servers. (Examples: voice telephony, facsimile, video phone, e-mail and instant messaging services.) 3.6 telecommunications platform services: Services designed to support telecommunications equipment and user management, user authentication, content management, charging and payment pro
43、cedures by operators engaged in the provision of information services via telecommunications equipment. 3.7 telecommunications accessibility: For the telecommunications area, the usability of a product, service, environment or facility by the widest possible range of users and especially users with
44、disabilities. 3.8 assistive technology: Piece of equipment, product system, hardware, software or service that is used to enable, maintain or improve functional capabilities of individuals with disabilities. 4 Abbreviations None. 5 Conventions None. ITU-T Rec. F.790 (01/2007) 3 6 General principles
45、In order to ensure and improve telecommunications accessibility, developers of telecommunications equipment and services shall comply with the following general principles. a) When planning, developing, designing, and distributing telecommunications equipment and services, developers should consider
46、 older persons and persons with disabilities to ensure that they can use such equipment and services as much as possible. This concept is known as “inclusive design“. There will be cases where inclusive design is not practical and, in those cases, the aim should be to provide a service with absolute
47、 or near functional equivalence to the original service. b) If the required degree of accessibility cannot be provided in the standard configuration of telecommunications equipment or services, such accessibility may be attained by using the product in combination with optional equipment or assistiv
48、e technology from other manufacturers. Again, the aim should be to provide a service with absolute or near functional equivalence to the original service. c) The functions related to telecommunications accessibility should ensure the safety of users. d) The functions related to telecommunications ac
49、cessibility should maintain the information security of users. e) Telecommunications equipment and services should be as operable and usable as possible without imposing excessive load on cognitive and memory capabilities. Telecommunications equipment and services should also be as operable and usable as possible even if there are differences in culture or language or if users operate and use them for the first time. 7 Requirements for planning, development and design In order to ensure and improve telecommunications accessibility, developers of telecommun
