1、 EN 301 549 V1.1.2 (2015-04) EUROPEAN STANDARD Accessibility requirements suitable for public procurement of ICT products and services in Europe EN 301 549 V1.1.2 (2015-04) ETSI 2 Reference REN/HF-00160 Keywords accessibility, HF, ICT, procurement CEN Avenue Marnix 17 B-1000 Brussels - BELGIUM Tel:
2、+ 32 2 550 08 11 Fax: + 32 2 550 08 19 CENELEC Avenue Marnix 17 B-1000 Brussels - BELGIUM Tel.: +32 2 519 68 71 Fax: +32 2 519 69 19 ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association bu
3、t non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in more than one electronic version or in print. In any case of exist
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6、wing services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. C
7、omit Europen de Normalisation 2015. Comit Europen de Normalisation Electrotechnique 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Mem
8、bers and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. EN 301 549 V1.1.2 (2015-04) ETSI 3 Contents Contents 3 Intellectual Property Rights 15 Foreword. 15 Modal verbs terminology . 15 Introduction 15 1 Scope 16 2 References 16
9、2.1 Normative references . 16 2.2 Informative references . 17 3 Definitions and abbreviations . 18 3.1 Definitions . 18 3.2 Abbreviations . 21 4 Functional performance 21 4.1 Meeting functional performance statements 21 4.2 Functional performance statements . 22 4.2.1 Usage without vision 22 4.2.2 U
10、sage with limited vision . 22 4.2.3 Usage without perception of colour . 22 4.2.4 Usage without hearing 22 4.2.5 Usage with limited hearing 22 4.2.6 Usage without vocal capability 22 4.2.7 Usage with limited manipulation or strength . 23 4.2.8 Usage with limited reach 23 4.2.9 Minimize photosensitiv
11、e seizure triggers . 23 4.2.10 Usage with limited cognition . 23 4.2.11 Privacy . 23 5 Generic requirements . 23 5.1 Closed functionality . 23 5.1.1 Introduction (Informative) 23 5.1.2 General . 24 5.1.2.1 Closed functionality 24 5.1.2.2 Assistive technology . 24 5.1.3 Non-visual access . 24 5.1.3.1
12、 General . 24 5.1.3.2 Auditory output delivery including speech . 24 5.1.3.3 Auditory output correlation 24 5.1.3.4 Speech output user control . 25 5.1.3.5 Speech output automatic interruption . 25 5.1.3.6 Speech output for non-text content . 25 5.1.3.7 Speech output for video information 25 5.1.3.8
13、 Masked entry 25 5.1.3.9 Private access to personal data . 25 5.1.3.10 Non-interfering audio output 26 5.1.3.11 Private listening volume . 26 5.1.3.12 Speaker volume 26 5.1.3.13 Volume reset . 26 5.1.3.14 Spoken languages . 26 5.1.3.15 Non-visual error identification . 26 5.1.3.16 Receipts, tickets,
14、 and transactional outputs 26 5.1.4 Functionality closed to text enlargement 26 5.1.5 Visual output for auditory information. 27 5.1.6 Operation without keyboard interface 27 5.1.6.1 Closed functionality 27 EN 301 549 V1.1.2 (2015-04) ETSI 4 5.1.6.2 Input focus 27 5.2 Activation of accessibility fea
15、tures 27 5.3 Biometrics 27 5.4 Preservation of accessibility information during conversion . 27 5.5 Operable parts 27 5.5.1 Means of operation . 27 5.5.2 Operable parts discernibility 28 5.6 Locking or toggle controls . 28 5.6.1 Tactile or auditory status 28 5.6.2 Visual status . 28 5.7 Key repeat 2
16、8 5.8 Double-strike key acceptance 28 5.9 Simultaneous user actions 28 6 ICT with two-way voice communication . 28 6.1 Audio bandwidth for speech (informative recommendation) 28 6.2 Real-time text (RTT) functionality 29 6.2.1 RTT provision 29 6.2.1.1 RTT communication . 29 6.2.1.2 Concurrent voice a
17、nd text . 29 6.2.2 Display of Real-time Text 29 6.2.2.1 Visually distinguishable display . 29 6.2.2.2 Programmatically determinable send and receive direction . 29 6.2.3 Interoperability . 29 6.2.4 Real-time text responsiveness 30 6.3 Caller ID 30 6.4 Alternatives to voice-based services 30 6.5 Vide
18、o communication 30 6.5.1 General (informative) . 30 6.5.2 Resolution 30 6.5.3 Frame rate 30 6.5.4 Synchronization between audio and video . 31 6.6 Alternatives to video-based services 31 7 ICT with video capabilities 31 7.1 Caption processing technology 31 7.1.1 Captioning playback . 31 7.1.2 Captio
19、ning synchronization 31 7.1.3 Preservation of captioning 31 7.2 Audio description technology 31 7.2.1 Audio description playback 31 7.2.2 Audio description synchronization . 32 7.2.3 Preservation of audio description . 32 7.3 User controls for captions and audio description . 32 8 Hardware 32 8.1 Ge
20、neral . 32 8.1.1 Generic requirements . 32 8.1.2 Standard connections 32 8.1.3 Colour. 32 8.2 Hardware products with speech output 33 8.2.1 Speech volume gain . 33 8.2.1.1 Speech volume range 33 8.2.1.2 Incremental volume control 33 8.2.2 Magnetic coupling 33 8.2.2.1 Fixed-line devices . 33 8.2.2.2
21、Wireless communication devices . 33 8.3 Physical access to ICT . 33 8.3.1 General (informative) . 33 8.3.2 Clear floor or ground space 34 8.3.2.1 Change in level . 34 8.3.2.2 Clear floor or ground space 34 8.3.2.3 Approach 34 EN 301 549 V1.1.2 (2015-04) ETSI 5 8.3.2.3.1 General 34 8.3.2.3.2 Forward
22、approach . 34 8.3.2.3.3 Parallel approach . 35 8.3.2.4 Knee and toe clearance width . 35 8.3.2.5 Toe clearance 35 8.3.2.6 Knee clearance 36 8.3.3 Reach range for ICT . 36 8.3.3.1 Forward reach . 36 8.3.3.1.1 Unobstructed high forward reach 36 8.3.3.1.2 Unobstructed low forward reach . 36 8.3.3.1.3 O
23、bstructed reach . 37 8.3.3.2 Side reach . 37 8.3.3.2.1 Unobstructed high side reach 37 8.3.3.2.2 Unobstructed low side reach . 37 8.3.3.2.3 Obstructed side reach 38 8.3.4 Visibility . 38 8.3.5 Installation instructions 38 8.4 Mechanically operable parts 38 8.4.1 Numeric keys . 38 8.4.2 Operation of
24、mechanical parts 38 8.4.2.1 Means of operation of mechanical parts . 38 8.4.2.2 Force of operation of mechanical parts. 39 8.4.3 Keys, tickets and fare cards 39 8.5 Tactile indication of speech mode . 39 9 Web 39 9.1 General (informative) 39 9.2 Web content requirements . 40 9.2.1 Non-text content .
25、 40 9.2.2 Audio-only and video-only (pre-recorded) 40 9.2.3 Captions (pre-recorded) 40 9.2.4 Audio description or media alternative (pre-recorded) 40 9.2.5 Captions (live) 40 9.2.6 Audio description (pre-recorded) . 40 9.2.7 Info and relationships . 40 9.2.8 Meaningful sequence 40 9.2.9 Sensory char
26、acteristics . 40 9.2.10 Use of colour 40 9.2.11 Audio control . 40 9.2.12 Contrast (minimum) . 40 9.2.13 Resize text 40 9.2.14 Images of text . 40 9.2.15 Keyboard 41 9.2.16 No keyboard trap 41 9.2.17 Timing adjustable . 41 9.2.18 Pause, stop, hide . 41 9.2.19 Three flashes or below threshold 41 9.2.
27、20 Bypass blocks . 41 9.2.21 Page titled . 41 9.2.22 Focus Order 41 9.2.23 Link purpose (in context) . 41 9.2.24 Multiple ways . 41 9.2.25 Headings and labels 41 9.2.26 Focus visible. 41 9.2.27 Language of page . 41 9.2.28 Language of parts . 41 9.2.29 On focus . 41 9.2.30 On input 42 9.2.31 Consist
28、ent navigation . 42 9.2.32 Consistent identification . 42 9.2.33 Error identification . 42 9.2.34 Labels or instructions . 42 EN 301 549 V1.1.2 (2015-04) ETSI 6 9.2.35 Error suggestion . 42 9.2.36 Error prevention (legal, financial, data) . 42 9.2.37 Parsing 42 9.2.38 Name, role, value . 42 9.3 WCAG
29、 2.0 conformance requirements 42 10 Non-web documents . 43 10.1 General (informative) 43 10.2 Document success criteria . 43 10.2.1 Non-text content . 43 10.2.2 Audio-only and video-only (pre-recorded) 44 10.2.3 Captions (pre-recorded) 44 10.2.4 Audio description or media alternative (pre-recorded)
30、44 10.2.5 Captions (live) 45 10.2.6 Audio description (pre-recorded) . 45 10.2.7 Info and relationships . 45 10.2.8 Meaningful sequence 45 10.2.9 Sensory characteristics . 45 10.2.10 Use of colour 46 10.2.11 Audio control . 46 10.2.12 Contrast (minimum) . 46 10.2.13 Resize text 46 10.2.14 Images of
31、text . 47 10.2.15 Keyboard 47 10.2.16 No keyboard trap 47 10.2.17 Timing adjustable . 48 10.2.18 Pause, stop, hide . 48 10.2.19 Three flashes or below threshold 49 10.2.20 Empty clause 49 10.2.21 Document titled 49 10.2.22 Focus order . 49 10.2.23 Link purpose (in context) . 49 10.2.24 Empty clause
32、49 10.2.25 Headings and labels 50 10.2.26 Focus visible. 50 10.2.27 Language of document . 50 10.2.28 Language of parts . 50 10.2.29 On focus . 51 10.2.30 On input 51 10.2.31 Empty clause 51 10.2.32 Empty clause 51 10.2.33 Error identification . 51 10.2.34 Labels or instructions . 51 10.2.35 Error s
33、uggestion . 52 10.2.36 Error prevention (legal, financial, data) . 52 10.2.37 Parsing 52 10.2.38 Name, role, value . 53 10.2.39 Caption positioning 53 10.2.40 Audio description timing 53 11 Software . 53 11.1 General (informative) 53 11.2 Non-Web software success criteria 53 11.2.1 Non-Web software
34、success criteria (excluding closed functionality) 54 11.2.1.1 Non-text content (screen reading supported) 54 11.2.1.2 Audio-only and video-only (pre-recorded) . 55 11.2.1.3 Captions (pre-recorded) 55 11.2.1.4 Audio description or media alternative (pre-recorded) . 55 11.2.1.5 Captions (live) 56 11.2
35、.1.6 Audio description (pre-recorded) . 56 11.2.1.7 Info and relationships . 56 11.2.1.8 Meaningful sequence 56 EN 301 549 V1.1.2 (2015-04) ETSI 7 11.2.1.9 Sensory characteristics . 57 11.2.1.10 Use of colour 57 11.2.1.11 Audio control 57 11.2.1.12 Contrast (minimum) . 57 11.2.1.13 Resize text 58 11
36、.2.1.14 Images of text . 58 11.2.1.15 Keyboard 58 11.2.1.16 No keyboard trap 59 11.2.1.17 Timing adjustable . 59 11.2.1.18 Pause, stop, hide . 60 11.2.1.19 Three flashes or below threshold 60 11.2.1.20 Empty clause 60 11.2.1.21 Empty clause 60 11.2.1.22 Focus order . 61 11.2.1.23 Link purpose (in co
37、ntext) . 61 11.2.1.24 Empty clause 61 11.2.1.25 Headings and labels 61 11.2.1.26 Focus visible . 61 11.2.1.27 Language of software . 62 11.2.1.28 Empty clause 62 11.2.1.29 On focus . 62 11.2.1.30 On input 62 11.2.1.31 Empty clause 62 11.2.1.32 Empty clause 62 11.2.1.33 Error identification . 63 11.2
38、.1.34 Labels or instructions 63 11.2.1.35 Error suggestion 63 11.2.1.36 Error prevention (legal, financial, data) 63 11.2.1.37 Parsing 64 11.2.1.38 Name, role, value 64 11.2.2 Non-Web software requirements (closed functionality). 65 11.2.2.1 Non-text content . 65 11.2.2.2 Audio-only and video-only (
39、pre-recorded) . 65 11.2.2.2.1 Pre-recorded audio-only 65 11.2.2.2.2 Pre-recorded video-only 65 11.2.2.3 Empty clause 65 11.2.2.4 Audio description or media alternative (pre-recorded) . 65 11.2.2.5 Empty clause 65 11.2.2.6 Empty clause 65 11.2.2.7 Info and relationships . 66 11.2.2.8 Meaningful seque
40、nce 66 11.2.2.9 Empty clause 66 11.2.2.10 Empty clause 66 11.2.2.11 Empty clause 66 11.2.2.12 Empty clause 66 11.2.2.13 Resize text 66 11.2.2.14 Images of text . 67 11.2.2.15 Keyboard 67 11.2.2.16 Empty clause 67 11.2.2.17 Empty clause 67 11.2.2.18 Empty clause 67 11.2.2.19 Empty clause 67 11.2.2.20
41、 Empty clause 67 11.2.2.21 Empty clause 67 11.2.2.22 Empty clause 67 11.2.2.23 Empty clause 67 11.2.2.24 Empty clause 67 11.2.2.25 Empty clause 67 11.2.2.26 Empty clause 68 11.2.2.27 Language of software . 68 11.2.2.28 Empty clause 68 11.2.2.29 Empty clause 68 EN 301 549 V1.1.2 (2015-04) ETSI 8 11.2
42、.2.30 Empty clause 68 11.2.2.31 Empty clause 68 11.2.2.32 Empty clause 68 11.2.2.33 Error Identification . 68 11.2.2.34 Empty clause 68 11.2.2.35 Empty clause 68 11.2.2.36 Empty clause 68 11.2.2.37 Parsing 69 11.2.2.38 Name, role, value 69 11.3 Interoperability with assistive technology . 69 11.3.1
43、Closed functionality . 69 11.3.2 Accessibility services . 69 11.3.2.1 Platform accessibility service support for software that provides a user 69 11.3.2.2 Platform accessibility service support for assistive technologies . 69 11.3.2.3 Use of accessibility services . 70 11.3.2.4 Assistive technology
44、. 70 11.3.2.5 Object information 70 11.3.2.6 Row, column, and headers 70 11.3.2.7 Values . 70 11.3.2.8 Label relationships 70 11.3.2.9 Parent-child relationships . 70 11.3.2.10 Text . 71 11.3.2.11 List of available actions 71 11.3.2.12 Execution of available actions 71 11.3.2.13 Tracking of focus an
45、d selection attributes 71 11.3.2.14 Modification of focus and selection attributes 71 11.3.2.15 Change notification 71 11.3.2.16 Modifications of states and properties 71 11.3.2.17 Modifications of values and text. 72 11.4 Documented accessibility usage 72 11.4.1 User control of accessibility featur
46、es . 72 11.4.2 No disruption of accessibility features . 72 11.5 User preferences 72 11.6 Authoring tools 72 11.6.1 Content technology 72 11.6.2 Accessible content creation 72 11.6.3 Preservation of accessibility information in transformations . 72 11.6.4 Repair assistance 73 11.6.5 Templates . 73 1
47、2 Documentation and support services 73 12.1 Product documentation 73 12.1.1 Accessibility and compatibility features 73 12.1.2 Accessible documentation 73 12.2 Support services . 73 12.2.1 General (informative) . 73 12.2.2 Information on accessibility and compatibility features . 74 12.2.3 Effectiv
48、e communication . 74 12.2.4 Accessible documentation 74 13 ICT providing relay or emergency service access 74 13.1 Relay services requirements 74 13.1.1 General (informative) . 74 13.1.2 Text relay services 74 13.1.3 Sign relay services 74 13.1.4 Lip-reading relay services 74 13.1.5 Captioned teleph
49、ony services . 75 13.1.6 Speech to speech relay services 75 13.2 Access to relay services . 75 13.3 Access to emergency services 75 Annex A (informative): WCAG 2.0 . 76 A.1 Electronic attachment 76 EN 301 549 V1.1.2 (2015-04) ETSI 9 Annex B (informative): Relationship between requirements and functional performance statements 77 B.1 Relationships between clauses 5 to 13 and the functional performance statements 77 Annex C (normative): Determination of compliance . 84 C.1 Introduction 84 C.2 Blank clause . 84 C.3 Blank clause . 84 C.4 Functional performance . 84 C.5 Gener
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