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BS EN 301549:2021 Accessibility requirements for ICT products and services, 2021

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BS EN 301549:2021 Accessibility requirements for ICT products and services, 2021

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Contents
Intellectual Property Rights
Foreword
Modal verbs terminology
Introduction
1 Scope
2 References [Go to Page]
2.1 Normative references
2.2 Informative references
3 Definition of terms, symbols and abbreviations [Go to Page]
3.1 Terms
3.2 Symbols
3.3 Abbreviations
4 Functional performance [Go to Page]
4.2 Functional performance statements [Go to Page]
4.2.1 Usage without vision
4.2.2 Usage with limited vision
4.2.3 Usage without perception of colour
4.2.4 Usage without hearing
4.2.5 Usage with limited hearing
4.2.6 Usage with no or limited vocal capability
4.2.7 Usage with limited manipulation or strength
4.2.8 Usage with limited reach
4.2.9 Minimize photosensitive seizure triggers
4.2.10 Usage with limited cognition, language or learning
4.2.11 Privacy
5 Generic requirements [Go to Page]
5.1 Closed functionality [Go to Page]
5.1.1 Introduction (informative)
5.1.2 General [Go to Page]
5.1.2.1 Closed functionality
5.1.2.2 Assistive technology
5.1.3 Non-visual access [Go to Page]
5.1.3.1 Audio output of visual information
5.1.3.2 Auditory output delivery including speech
5.1.3.3 Auditory output correlation
5.1.3.4 Speech output user control
5.1.3.5 Speech output automatic interruption
5.1.3.6 Speech output for non-text content
5.1.3.7 Speech output for video information
5.1.3.8 Masked entry
5.1.3.9 Private access to personal data
5.1.3.10 Non-interfering audio output
5.1.3.11 Private listening volume
5.1.3.12 Speaker volume
5.1.3.13 Volume reset
5.1.3.14 Spoken languages
5.1.3.15 Non-visual error identification
5.1.3.16 Receipts, tickets, and transactional outputs
5.1.4 Functionality closed to text enlargement
5.1.5 Visual output for auditory information
5.1.6 Operation without keyboard interface [Go to Page]
5.1.6.1 Closed functionality
5.1.6.2 Input focus
5.1.7 Access without speech
5.2 Activation of accessibility features
5.3 Biometrics
5.4 Preservation of accessibility information during conversion
5.5 Operable parts [Go to Page]
5.5.1 Means of operation
5.5.2 Operable parts discernibility
5.6 Locking or toggle controls [Go to Page]
5.6.1 Tactile or auditory status
5.6.2 Visual status
5.7 Key repeat
5.8 Double-strike key acceptance
5.9 Simultaneous user actions
6 ICT with two-way voice communication [Go to Page]
6.1 Audio bandwidth for speech
6.2 Real-Time Text (RTT) functionality [Go to Page]
6.2.1 RTT provision [Go to Page]
6.2.1.1 RTT communication
6.2.1.2 Concurrent voice and text
6.2.2 Display of RTT [Go to Page]
6.2.2.1 Visually distinguishable display
6.2.2.2 Programmatically determinable send and receive direction
6.2.2.3 Speaker identification
6.2.2.4 Visual indicator of Audio with RTT
6.2.3 Interoperability
6.2.4 RTT responsiveness
6.3 Caller ID
6.4 Alternatives to voice-based services
6.5 Video communication [Go to Page]
6.5.1 General (informative)
6.5.2 Resolution
6.5.3 Frame rate
6.5.4 Synchronization between audio and video
6.5.5 Visual indicator of audio with video
6.5.6 Speaker identification with video (sign language) communication
6.6 Alternatives to video-based services
7 ICT with video capabilities [Go to Page]
7.1 Caption processing technology [Go to Page]
7.1.1 Captioning playback
7.1.2 Captioning synchronization
7.1.3 Preservation of captioning
7.1.4 Captions characteristics
7.1.5 Spoken subtitles
7.2 Audio description technology [Go to Page]
7.2.1 Audio description playback
7.2.2 Audio description synchronization
7.2.3 Preservation of audio description
7.3 User controls for captions and audio description
8 Hardware [Go to Page]
8.1 General [Go to Page]
8.1.1 Generic requirements
8.1.2 Standard connections
8.1.3 Colour
8.2 Hardware products with speech output [Go to Page]
8.2.1 Speech volume gain [Go to Page]
8.2.1.1 Speech volume range
8.2.1.2 Incremental volume control
8.2.2 Magnetic coupling [Go to Page]
8.2.2.1 Fixed-line devices
8.2.2.2 Wireless communication devices
8.3 Stationary ICT [Go to Page]
8.3.0 General
8.3.1 Forward or side reach
8.3.2 Forward reach [Go to Page]
8.3.2.1 Unobstructed high forward reach
8.3.2.2 Unobstructed low forward reach
8.3.2.3 Obstructed forward reach
8.3.2.4 Knee and toe clearance width
8.3.2.5 Toe clearance
8.3.2.6 Knee clearance
8.3.3 Side reach [Go to Page]
8.3.3.1 Unobstructed high side reach
8.3.3.2 Unobstructed low side reach
8.3.3.3 Obstructed side reach
8.3.4 Clear floor or ground space [Go to Page]
8.3.4.1 Change in level
8.3.4.2 Clear floor or ground space
8.3.4.3 Approach
8.3.5 Visibility
8.3.6 Installation instructions
8.4 Mechanically operable parts [Go to Page]
8.4.1 Numeric keys
8.4.2 Operation of mechanical parts [Go to Page]
8.4.2.1 Means of operation of mechanical parts
8.4.2.2 Force of operation of mechanical parts
8.4.3 Keys, tickets and fare cards
8.5 Tactile indication of speech mode
9 Web [Go to Page]
9.0 General (informative)
9.1 Perceivable [Go to Page]
9.1.1 Text alternatives [Go to Page]
9.1.1.1 Non-text content
9.1.2 Time-based media [Go to Page]
9.1.2.1 Audio-only and video-only (pre-recorded)
9.1.2.2 Captions (pre-recorded)
9.1.2.3 Audio description or media alternative (pre-recorded)
9.1.2.4 Captions (live)
9.1.2.5 Audio description (pre-recorded)
9.1.3 Adaptable [Go to Page]
9.1.3.1 Info and relationships
9.1.3.2 Meaningful sequence
9.1.3.3 Sensory characteristics
9.1.3.4 Orientation
9.1.3.5 Identify input purpose
9.1.4 Distinguishable [Go to Page]
9.1.4.1 Use of colour
9.1.4.2 Audio control
9.1.4.3 Contrast (minimum)
9.1.4.4 Resize text
9.1.4.5 Images of text
9.1.4.6 Void
9.1.4.7 Void
9.1.4.8 Void
9.1.4.9 Void
9.1.4.10 Reflow
9.1.4.11 Non-text contrast
9.1.4.12 Text spacing
9.1.4.13 Content on hover or focus
9.2 Operable [Go to Page]
9.2.1 Keyboard accessible [Go to Page]
9.2.1.1 Keyboard
9.2.1.2 No keyboard trap
9.2.1.3 Void
9.2.1.4 Character key shortcuts
9.2.2 Enough time [Go to Page]
9.2.2.1 Timing adjustable
9.2.2.2 Pause, stop, hide
9.2.3 Seizures and physical reactions [Go to Page]
9.2.3.1 Three flashes or below threshold
9.2.4 Navigable [Go to Page]
9.2.4.1 Bypass blocks
9.2.4.2 Page titled
9.2.4.3 Focus Order
9.2.4.4 Link purpose (in context)
9.2.4.5 Multiple ways
9.2.4.6 Headings and labels
9.2.4.7 Focus visible
9.2.5 Input modalities [Go to Page]
9.2.5.1 Pointer gestures
9.2.5.2 Pointer cancellation
9.2.5.3 Label in name
9.2.5.4 Motion actuation
9.3 Understandable [Go to Page]
9.3.1 Readable [Go to Page]
9.3.1.1 Language of page
9.3.1.2 Language of parts
9.3.2 Predictable [Go to Page]
9.3.2.1 On focus
9.3.2.2 On input
9.3.2.3 Consistent navigation
9.3.2.4 Consistent identification
9.3.3 Input assistance [Go to Page]
9.3.3.1 Error identification
9.3.3.2 Labels or instructions
9.3.3.3 Error suggestion
9.3.3.4 Error prevention (legal, financial, data)
9.4 Robust [Go to Page]
9.4.1 Compatible [Go to Page]
9.4.1.1 Parsing
9.4.1.2 Name, role, value
9.4.1.3 Status messages
9.5 WCAG 2.1 AAA Success Criteria
9.6 WCAG conformance requirements
10 Non-web documents [Go to Page]
10.0 General (informative)
10.1 Perceivable [Go to Page]
10.1.1 Text alternatives [Go to Page]
10.1.1.1 Non-text content
10.1.2 Time-based media [Go to Page]
10.1.2.1 Audio-only and video-only (pre-recorded)
10.1.2.2 Captions (pre-recorded)
10.1.2.3 Audio description or media alternative (pre-recorded)
10.1.2.4 Captions (live)
10.1.2.5 Audio description (pre-recorded)
10.1.3 Adaptable [Go to Page]
10.1.3.1 Info and relationships
10.1.3.2 Meaningful sequence
10.1.3.3 Sensory characteristics
10.1.3.4 Orientation
10.1.3.5 Identify input purpose
10.1.4 Distinguishable [Go to Page]
10.1.4.1 Use of colour
10.1.4.2 Audio control
10.1.4.3 Contrast (minimum)
10.1.4.4 Resize text
10.1.4.5 Images of text
10.1.4.6 Void
10.1.4.7 Void
10.1.4.8 Void
10.1.4.9 Void
10.1.4.10 Reflow
10.1.4.11 Non-text contrast
10.1.4.12 Text spacing
10.1.4.13 Content on hover or focus
10.2 Operable [Go to Page]
10.2.1 Keyboard accessible [Go to Page]
10.2.1.1 Keyboard
10.2.1.2 No keyboard trap
10.2.1.3 Void
10.2.1.4 Character key shortcuts
10.2.2 Enough time [Go to Page]
10.2.2.1 Timing adjustable
10.2.2.2 Pause, stop, hide
10.2.3 Seizures and physical reactions [Go to Page]
10.2.3.1 Three flashes or below threshold
10.2.4 Navigable [Go to Page]
10.2.4.1 Void
10.2.4.2 Document titled
10.2.4.3 Focus Order
10.2.4.4 Link purpose (in context)
10.2.4.5 Void
10.2.4.6 Headings and labels
10.2.4.7 Focus visible
10.2.5 Input modalities [Go to Page]
10.2.5.1 Pointer gestures
10.2.5.2 Pointer cancellation
10.2.5.3 Label in name
10.2.5.4 Motion actuation
10.3 Understandable [Go to Page]
10.3.1 Readable [Go to Page]
10.3.1.1 Language of document
10.3.1.2 Language of parts
10.3.2 Predictable [Go to Page]
10.3.2.1 On focus
10.3.2.2 On input
10.3.2.3 Void
10.3.2.4 Void
10.3.3 Input assistance [Go to Page]
10.3.3.1 Error identification
10.3.3.2 Labels or instructions
10.3.3.3 Error suggestion
10.3.3.4 Error prevention (legal, financial, data)
10.4 Robust [Go to Page]
10.4.1 Compatible [Go to Page]
10.4.1.1 Parsing
10.4.1.2 Name, role, value
10.4.1.3 Status messages
10.5 Caption positioning
10.6 Audio description timing
11 Software [Go to Page]
11.0 General (informative)
11.1 Perceivable [Go to Page]
11.1.1 Text alternatives [Go to Page]
11.1.1.1 Non-text content
11.1.2 Time-based media [Go to Page]
11.1.2.1 Audio-only and video-only (pre-recorded)
11.1.2.2 Captions (pre-recorded)
11.1.2.3 Audio description or media alternative (pre-recorded)
11.1.2.4 Captions (live)
11.1.2.5 Audio description (pre-recorded)
11.1.3 Adaptable [Go to Page]
11.1.3.1 Info and relationships
11.1.3.2 Meaningful sequence
11.1.3.3 Sensory characteristics
11.1.3.4 Orientation
11.1.3.5 Identify input purpose
11.1.4 Distinguishable [Go to Page]
11.1.4.1 Use of colour
11.1.4.2 Audio control
11.1.4.3 Contrast (minimum)
11.1.4.4 Resize text
11.1.4.5 Images of text
11.1.4.6 Void
11.1.4.7 Void
11.1.4.8 Void
11.1.4.9 Void
11.1.4.10 Reflow
11.1.4.11 Non-text contrast
11.1.4.12 Text spacing
11.1.4.13 Content on hover or focus
11.2 Operable [Go to Page]
11.2.1 Keyboard accessible [Go to Page]
11.2.1.1 Keyboard
11.2.1.2 No keyboard trap
11.2.1.3 Void
11.2.1.4 Character key shortcuts
11.2.2 Enough time [Go to Page]
11.2.2.1 Timing adjustable
11.2.2.2 Pause, stop, hide
11.2.3 Seizures and physical reactions [Go to Page]
11.2.3.1 Three flashes or below threshold
11.2.4 Navigable [Go to Page]
11.2.4.1 Void
11.2.4.2 Void
11.2.4.3 Focus order
11.2.4.4 Link purpose (in context)
11.2.4.5 Void
11.2.4.6 Headings and labels
11.2.4.7 Focus visible
11.2.5 Input modalities [Go to Page]
11.2.5.1 Pointer gestures
11.2.5.2 Pointer cancellation
11.2.5.3 Label in name
11.2.5.4 Motion actuation
11.3 Understandable [Go to Page]
11.3.1 Readable [Go to Page]
11.3.1.1 Language of software
11.3.1.2 Void
11.3.2 Predictable [Go to Page]
11.3.2.1 On focus
11.3.2.2 On input
11.3.2.3 Void
11.3.2.4 Void
11.3.3 Input assistance [Go to Page]
11.3.3.1 Error identification
11.3.3.2 Labels or instructions
11.3.3.3 Error suggestion
11.3.3.4 Error prevention (legal, financial, data)
11.4 Robust [Go to Page]
11.4.1 Compatible [Go to Page]
11.4.1.1 Parsing
11.4.1.2 Name, role, value
11.4.1.3 Status messages
11.5 Interoperability with assistive technology [Go to Page]
11.5.1 Closed functionality
11.5.2 Accessibility services [Go to Page]
11.5.2.2 Platform accessibility service support for assistive technologies
11.5.2.3 Use of accessibility services
11.5.2.4 Assistive technology
11.5.2.5 Object information
11.5.2.6 Row, column, and headers
11.5.2.7 Values
11.5.2.8 Label relationships
11.5.2.9 Parent-child relationships
11.5.2.10 Text
11.5.2.11 List of available actions
11.5.2.12 Execution of available actions
11.5.2.13 Tracking of focus and selection attributes
11.5.2.14 Modification of focus and selection attributes
11.5.2.15 Change notification
11.5.2.16 Modifications of states and properties
11.5.2.17 Modifications of values and text
11.6 Documented accessibility usage [Go to Page]
11.6.1 User control of accessibility features
11.6.2 No disruption of accessibility features
11.7 User preferences
11.8 Authoring tools [Go to Page]
11.8.0 General (informative)
11.8.1 Content technology
11.8.2 Accessible content creation
11.8.3 Preservation of accessibility information in transformations
11.8.4 Repair assistance
11.8.5 Templates
12 Documentation and support services [Go to Page]
12.1 Product documentation [Go to Page]
12.1.1 Accessibility and compatibility features
12.1.2 Accessible documentation
12.2 Support services [Go to Page]
12.2.1 General (informative)
12.2.2 Information on accessibility and compatibility features
12.2.3 Effective communication
12.2.4 Accessible documentation
13 ICT providing relay or emergency service access [Go to Page]
13.1 Relay services requirements [Go to Page]
13.1.1 General (informative)
13.1.2 Text relay services
13.1.3 Sign relay services
13.1.4 Lip-reading relay services
13.1.5 Captioned telephony services
13.1.6 Speech to speech relay services
13.2 Access to relay services
13.3 Access to emergency services
14 Conformance
Annex A (informative):Relationship between the present document and the essential requirements of Directive 2016/2102
Annex B (informative):Relationship between requirements and functional performance statements [Go to Page]
B.1 Relationships between clauses 5 to 13 and the functional performance statements
B.2 Interpretation of Table B.2 [Go to Page]
B.2.0 General
B.2.1 Example [Go to Page]
B.2.1.1 Step 1
B.2.1.2 Step 2
B.2.1.3 Step 3
B.2.1.4 Step 4
Annex C (normative):Determination of conformance [Go to Page]
C.1 Introduction
C.2 Empty clause
C.3 Empty clause
C.4 Functional performance
C.5 Generic requirements [Go to Page]
C.5.1 Closed functionality [Go to Page]
C.5.1.1 Introduction
C.5.1.2 General
C.5.1.3 Non-visual access
C.5.1.4 Functionality closed to text enlargement
C.5.1.5 Visual output for auditory information
C.5.1.6 Operation without keyboard interface
C.5.1.7 Access without speech
C.5.2 Activation of accessibility features
C.5.3 Biometrics
C.5.4 Preservation of accessibility information during conversion
C.5.5 Operable parts [Go to Page]
C.5.5.1 Means of operation
C.5.5.2 Operable part discernibility
C.5.6 Locking or toggle controls [Go to Page]
C.5.6.1 Tactile or auditory status
C.5.6.2 Visual status
C.5.7 Key repeat
C.5.8 Double-strike key acceptance
C.5.9 Simultaneous user actions
C.6 ICT with two-way voice communication [Go to Page]
C.6.1 Audio bandwidth for speech
C.6.2 Real-Time Text (RTT) functionality [Go to Page]
C.6.2.1 RTT provision
C.6.2.2 Display of RTT
C.6.2.3.a Interoperability (a)
C.6.2.3.b Interoperability (b)
C.6.2.3.c Interoperability (c)
C.6.2.3.d Interoperability (d)
C.6.2.4 RTT responsiveness
C.6.3 Caller ID
C.6.4 Alternatives to voice-based services
C.6.5 Video communication [Go to Page]
C.6.5.1 General
C.6.5.2 Resolution
C.6.5.3 Frame rate
C.6.5.4 Synchronization between audio and video
C.6.5.5 Visual indicator of audio with video
C.6.5.6 Speaker identification with video (sign language) communication
C.6.6 Alternatives to video-based services
C.7 ICT with video capabilities [Go to Page]
C.7.1 Caption processing technology [Go to Page]
C.7.1.1 Captioning playback
C.7.1.2 Captioning synchronization
C.7.1.3 Preservation of captioning
C.7.1.4 Captions characteristics
C.7.1.5 Spoken subtitles
C.7.2 Audio description technology [Go to Page]
C.7.2.1 Audio description playback
C.7.2.2 Audio description synchronization
C.7.2.3 Preservation of audio description
C.7.3 User controls for captions and audio description
C.8 Hardware [Go to Page]
C.8.1 General [Go to Page]
C.8.1.1 Generic requirements
C.8.1.2 Standard connections
C.8.1.3 Colour
C.8.2 Hardware products with speech output [Go to Page]
C.8.2.1 Speech volume gain
C.8.2.2 Magnetic coupling
C.8.3 Stationary ICT [Go to Page]
C.8.3.0 General
C.8.3.1 Forward or side reach
C.8.3.2 Forward reach
C.8.3.3 Side reach
C.8.3.4 Clear floor or ground space
C.8.3.5 Visibility
C.8.3.6 Installation instructions
C.8.4 Mechanically operable parts [Go to Page]
C.8.4.1 Numeric keys
C.8.4.2 Operation of mechanical parts
C.8.4.3 Keys, tickets and fare cards
C.8.5 Tactile indication of speech mode
C.9 Web [Go to Page]
C.9.0 General (informative)
C.9.1 Perceivable [Go to Page]
C.9.1.1 Text alternatives
C.9.1.2 Time-based media
C.9.1.3 Adaptable
C.9.1.4 Distinguishable
C.9.2 Operable [Go to Page]
C.9.2.1 Keyboard accessible
C.9.2.2 Enough time
C.9.2.3 Seizures and physical reactions
C.9.2.4 Navigable
C.9.2.5 Input modalities
C.9.3 Understandable [Go to Page]
C.9.3.1 Readable
C.9.3.2 Predictable
C.9.3.3 Input assistance
C.9.4 Robust [Go to Page]
C.9.4.1 Compatible
C.9.5 WCAG 2.1 AAA Success Criteria (informative)
C.9.6 WCAG 2.1 conformance requirements
C.10 Non-web documents [Go to Page]
C.10.0 General (informative)
C.10.1 Perceivable [Go to Page]
C.10.1.1 Text alternatives
C.10.1.2 Time-based media
C.10.1.3 Adaptable
C.10.1.4 Distinguishable
C.10.2 Operable [Go to Page]
C.10.2.1 Keyboard accessible
C.10.2.2 Enough time
C.10.2.3 Seizures and physical reactions
C.10.2.4 Navigable
C.10.2.5 Input modalities
C.10.3 Understandable [Go to Page]
C.10.3.1 Readable
C.10.3.2 Predictable
C.10.3.3 Input assistance
C.10.4 Robust [Go to Page]
C.10.4.1 Compatible
C.10.5 Caption positioning
C.10.6 Audio description timing
C.11 Software [Go to Page]
C.11.0 General
C.11.1 Perceivable [Go to Page]
C.11.1.1 Text alternatives
C.11.1.2 Time-based media
C.11.1.3 Adaptable
C.11.1.4 Distinguishable
C.11.2 Operable [Go to Page]
C.11.2.1 Keyboard accessible
C.11.2.2 Enough time
C.11.2.3 Seizures and physical reactions
C.11.2.4 Navigable
C.11.2.5 Input modalities
C.11.3 Understandable [Go to Page]
C.11.3.1 Readable
C.11.3.2 Predictable
C.11.3.3 Input assistance
C.11.4 Robust [Go to Page]
C.11.4.1 Compatible
C.11.5 Interoperability with assistive technology [Go to Page]
C.11.5.1 Closed functionality
C.11.5.2 Accessibility services
C.11.6 Documented accessibility usage [Go to Page]
C.11.6.1 User control of accessibility features
C.11.6.2 No disruption of accessibility features
C.11.7 User preferences
C.11.8 Authoring tools [Go to Page]
C.11.8.1 Content technology
C.11.8.2 Accessible content creation
C.11.8.3 Preservation of accessibility information in transformations
C.11.8.4 Repair assistance
C.11.8.5 Templates
C.12 Documentation and support services [Go to Page]
C.12.1 Product documentation [Go to Page]
C.12.1.1 Accessibility and compatibility features
C.12.1.2 Accessible documentation
C.12.2 Support services [Go to Page]
C.12.2.1 General
C.12.2.2 Information on accessibility and compatibility features
C.12.2.3 Effective communication
C.12.2.4 Accessible documentation
C.13 ICT providing relay or emergency service access [Go to Page]
C.13.1 Relay service requirements [Go to Page]
C.13.1.1 General
C.13.1.2 Text relay services
C.13.1.3 Sign relay services
C.13.1.4 Lip-reading relay services
C.13.1.5 Captioned telephony services
C.13.1.6 Speech to speech relay services
C.13.2 Access to relay services
C.13.3 Access to emergency services
Annex D (informative):Further resources for cognitive accessibility
Annex E (informative):Guidance for users of the present document [Go to Page]
E.1 Introduction
E.2 Overview
E.3 Clause 4
E.4 How to use the standard [Go to Page]
E.4.1 Self scoping requirements
E.4.2 Connection between requirements and functional performance statements
E.5 The European Web Accessibility Directive [i.28]
E.6 Annex D: Further resources for cognitive accessibility
Annex F (informative):Change history
History [Go to Page]

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