W3C

DRAFT NOTE: User Agent Accessibility Guidelines Impact Matrix

Draft Note 3 September 1999

This document:
http://www.w3.org/WAI/UA/NOTE-UAGL-impact-matrix-19990903
Latest version:
http://www.w3.org/WAI/UA/UAGL-impact-matrix
Previous version:
http://www.w3.org/WAI/UA/NOTE-UAGL-impact-matrix-19990901
Derived from:
http://www.w3.org/WAI/UA/WAI-USERAGENT-19990827/
Editors:
Kitch Barnicle, Ian Jacobs

Abstract

This document examines the impact of each checkpoint listed in the 27 August 1999 User Agent Accessibility Guidelines. For each checkpoint, we list the disabilities and technologies most affected.

Status of this document

This is a Draft W3C NOTE for review by the User Agent Guidelines Working Group. It has not been approved for publication as a W3C Note.

A list of current W3C Recommendations and other technical documents can be found at http://www.w3.org/TR.

This document has been produced as part of the Web Accessibility Initiative. The goal of the User Agent Guidelines Working Group is discussed in the Working Group charter.

Please send comments about this document to w3c-wai-ua@w3.org.

Table of Contents


Tabular presentation

Each checkpoint links to its definition in the User Agent Accessibility Guidelines. A list presentation of this table is also available.

CheckpointDisabilitiesInput TechnologiesOutput Technologies
Checkpoint 1.1: Ensure that all functionalities offered through the user interface may be operated through standard input device APIs supported by the operating system. [Priority 1] all all none
Checkpoint 1.2: Ensure that the user can interact with all active elements of a document in a device independent manner. [Priority 1] all all all
Checkpoint 1.3: Ensure that the user can install the user agent software in a device independent manner. [Priority 1] all all all
Checkpoint 1.4: Ensure that the user can configure the user agent in a device independent manner. [Priority 1] all all all
Checkpoint 1.5: Ensure that the user can access user agent documentation in a device independent manner. [Priority 1] all none all
Checkpoint 1.6: Ensure that all messages to the user (e.g., warnings, errors, etc.) are available through standard output device APIs supported by the operating system. [Priority 1] all all all
Checkpoint 2.1: By default and without additional customization, ensure that all functionalities offered by the user agent are accessible using the keyboard. [Priority 1] blind, physical, low vision keyboard, voice none
Checkpoint 2.2: Provide documentation on default keyboard commands and include with user agent documentation and/or user help system. [Priority 1] all, especially bl, physical, low vision keyboard, voice none
Checkpoint 2.3: Provide information to the user about the current keyboard configuration. [Priority 1] all, especially bl, physical, low vision keyboard, voice none
Checkpoint 2.4: Allow the user to configure the keystrokes used to activate user agent functionalities. Wherever possible, allow single key activation of functions. [Priority 2] blind, low vision, physical keyboard, voice none
Checkpoint 2.5: Allow the user to turn on and off author-specified keyboard configurations. [Priority 2] blind, low vision, physical keyboard, voice none
Checkpoint 2.6: Use platform conventions to indicate which keys activate which user agent functionalities. [Priority 2] all keyboard, voice all (Are there conventions for non-vi user agents?)
Checkpoint 2.7: Avoid default keyboard configurations that interfere with system conventions. [Priority 2] all keyboard, voice none
Checkpoint 2.8: Provide a default keyboard configuration for frequently performed operations. [Priority 3] all, especially bl, low vision, physcial keyboard, voice none
Checkpoint 3.1: Ensure that the user has access to document content, including alternative representations of content. [Priority 1] all, especially bl, low vision, deaf, hard of hearing, cognitive/learning, ep (e.g. descriptions of animations) all all
Checkpoint 3.2: For dependent user agents only. Ensure that the user has access to the content of an element selected by the user. [Priority 1] all, especially bl, lv?? all all
Checkpoint 3.3: For dependent user agents only. Render content according to natural language identification. For unsupported natural languages, notify the user of language changes when configured to do so. [Priority 1] all all all
Checkpoint 3.4: Provide time-independent access to time-dependent active elements or allow the user to control the timing of changes. [Priority 1] all all all
Checkpoint 3.5: When no alternative text representation has been specified, indicate what type of object is present. [Priority 2] blind, low vision none speech, small/magnified screen
Checkpoint 3.6: When alternative text has been specified explicitly as empty (i.e., an empty string), render nothing. [Priority 3] blind, low vision, cognitive/learning none all
Checkpoint 3.7: Allow the user to specify that description tracks (e.g., caption, auditory description, video of sign language, etc.) be rendered at the same time as audio and video tracks. [Priority 1] blind, low vision, deaf, hard of hearing, cognitive/learning none visual, small/magnified screen, speech, braille
Checkpoint 3.8: If a technology allows for more than one description track (e.g., caption, auditory description, video of sign language, etc.), allow the user to choose from among the tracks. [Priority 1] blind, low vision, deaf, hard of hearing, co (or all?) none visual, small/magnified screen, speech
Checkpoint 3.9: If a technology allows for more than one audio track, allow the user to choose from among tracks. [Priority 1] all? none audio
Checkpoint 4.1: Allow the user to turn on and off rendering of images. [Priority 1] blind, low vision, cognitive/learning none visual, small/magnified screen, speech
Checkpoint 4.2: Allow the user to turn on and off rendering of background images. [Priority 1] blind, low vision, cognitive/learning none visual, small/magnified screen, speech
Checkpoint 4.3: Allow the user to turn on and off rendering of video. [Priority 1] blind, low vision, cognitive/learning none visual, small/magnified screen, speech
Checkpoint 4.4: Allow the user to turn on and off rendering of sound. [Priority 1] all none vi user agent with sound, audio, speech
Checkpoint 4.5: Allow the user to turn on and off rendering of audio captions. [Priority 1] deaf, hard of hearing, cognitive/learning, [lv and bl - to avoid interference] none audio, visual, [sp;br;sc]
Checkpoint 4.6: Allow the user to turn on and off animated or blinking text. [Priority 1] blind, low vision, cognitive/learning, epilepsy none visual, braille, small/magnified screen
Checkpoint 4.7: Allow the user to turn on and off animations and blinking images. [Priority 1] blind, low vision, cognitive/learning, epilepsy none visual, braille, speech, small/magnified screen
Checkpoint 4.8: Allow the user to turn on and off support for scripts and applets. [Priority 1] all all all
Checkpoint 4.9: Allow the user to turn on and off support for user style sheets. [Priority 1] all none all
Checkpoint 4.10: Allow the user to turn on and off support for author style sheets. [Priority 1] all none all
Checkpoint 4.11: Allow the user to turn on and off support for spawned windows. [Priority 1] blind, low vision, cognitive/learning none visual, speech, small/magnified screen
Checkpoint 4.12: Allow the user to turn on and off rendering of frames. [Priority 2] blind, low vision, cognitive/learning, (ph? -efficiency) keyboard, voice small/magnified screen, speech, braille
Checkpoint 4.13: Allow the user to turn on and off author-specified page forwards that occur after a time delay and without user intervention. [Priority 3] blind, low vision none all
Checkpoint 4.14: Allow the user to turn on and off automatic page refresh. [Priority 3] blind, low vision ? ?
Checkpoint 5.1: Allow the user to control font family. [Priority 1] all, especially lv none visual, small/magnified screen
Checkpoint 5.2: Allow the user to control the size of text. [Priority 1] all, especially lv none visual, small/magnified screen, speech
Checkpoint 5.3: Allow the user to control foreground color. [Priority 1] color deficit, low vision, cognitive/learning none visual, small/magnified screen
Checkpoint 5.4: Allow the user to control background color. [Priority 1] color deficit, low vision, cognitive/learning none visual, small/magnified screen
Checkpoint 5.5: Allow the user to control selection highlighting (e.g., foreground and background color). [Priority 1] color deficit, low vision, cognitive/learning none visual, small/magnified screen, speech
Checkpoint 5.6: Allow the user to control focus highlighting (e.g., foreground and background color). [Priority 1] color deficit, low vision, cognitive/learning none visual, small/magnified screen, speech
Checkpoint 5.7: Allow the user to control animation rate. [Priority 2] low vision, cognitive/learning, epilepsy none visual, small/magnified screen
Checkpoint 5.8: Allow the user to control video frame rates. [Priority 1] low vision, cognitive/learning, epilepsy none visual, small/magnified screen
Checkpoint 5.9: Allow the user to control the position of audio captions. [Priority 1] deaf, hard of hearing, cognitive/learning, low vision none visual, small/magnified screen
Checkpoint 5.10: Allow the user to start, stop, pause, and rewind video. [Priority 2] all none visual
Checkpoint 5.11: Allow the user to control audio playback rate. [Priority 1] all, blind, low vision, cognitive/learning none audio
Checkpoint 5.12: When the user agent renders audio natively, allow the user to control the audio volume. [Priority 2] all none audio
Checkpoint 5.13: Allow the user to start, stop, pause, and rewind audio. [Priority 2] all none audio
Checkpoint 5.14: Allow the user to control speech playback rate. [Priority 1] blind, cognitive/learning, hard of hearing none speech
Checkpoint 5.15: Allow the user to control speech volume, pitch, gender and other articulation characteristics. [Priority 2] blind, low vision, cognitive/learning, hard of hearing none speech
Checkpoint 5.16: When new windows or user interface components are spawned, allow the user to control window size and position. [Priority 2] lv? none visual, small/magnified screen
Checkpoint 6.1: Use and provide accessible interfaces to other technologies. [Priority 1] all all all
Checkpoint 6.2: Provide programmatic read and write access to user agent functionalities and user interface controls (including selection and focus) by using operating system and development language accessibility resources and conventions. [Priority 1] all all all
Checkpoint 6.3: Notify dependent user agents of changes to the document and user interface controls (including selection and focus) by using operating system and development language accessibility resources and conventions. [Priority 1] all all all
Checkpoint 6.4: For graphical desktop browsers only. Comply with W3C Document Object Model specifications and export interfaces defined by those specifications. [Priority 1] all all all
Checkpoint 6.5: For graphical desktop browsers only. Provide programmatic exchange of information in a timely manner. [Priority 2] all all all
Checkpoint 6.6: Follow operating system conventions and accessibility settings. In particular, follow conventions for user interface design, default keyboard configuration, product installation, and documentation. [Priority 2] all all all
Checkpoint 7.1: Implement the accessibility features defined for supported specifications. [Priority 1] all all all
Checkpoint 7.2: Support appropriate W3C Recommendations. [Priority 2] all all all
Checkpoint 8.1: Allow the user to navigate viewports (including frames). [Priority 1] all all all
Checkpoint 8.2: For user agents that offer a browsing history mechanism, when the user returns to a previous view, restore the point of regard in the viewport. [Priority 1] all none all
Checkpoint 8.3: For dependent user agents only. Allow the user to navigate just among table cells of a table (notably left and right within a row and up and down within a column). [Priority 1] blind, low vision, ph? keyboard, voice speech, braille, small/magnified screen
Checkpoint 8.4: Allow the user to navigate just among all active elements in the document. [Priority 2] all all all (or none?)
Checkpoint 8.5: Allow the user to search for rendered text content, including alternative text content. [Priority 2] all, especially bl, low vision, cognitive/learning none all, especially sp, small/magnified screen, braille, (au - closed captions?)
Checkpoint 8.6: Allow the user to navigate the document structure. [Priority 2] blind, low vision, phyiscal (co?) keyboard, voice visual, speech, braille, small/magnified screen
Checkpoint 8.7: Allow the user to configure structured navigation. [Priority 3] blind, low vision, co? all all
Checkpoint 9.1: Provide a mechanism for highlighting and identifying (through a standard interface where available) the current viewport, selection, and focus. [Priority 1] all none all (Does highlighting imply vi only interfaces?)
Checkpoint 9.2: For dependent user agents only. Provide the user with information about the number of viewports. [Priority 2] blind, low vision none speech, braille, small/magnified screen
Checkpoint 9.3: For dependent user agents only. Allow the user to view a document outline constructed from its structural elements (e.g., from header and list elements). [Priority 2] blind, low vision, (co?) none visual, speech, braille, small/magnified screen
Checkpoint 9.4: Describe a selected element's context within a document (e.g., numerical or relative position). [Priority 2] blind, low vision keyboard, voice speech, braille, small/magnified screen
Checkpoint 9.5: For a selected link, indicate whether following the link will involve a fee. [Priority 2] all?, especially bl, low vision, cognitive/learning none all?
Checkpoint 9.6: For a selected link, provide information to help the user decide whether to follow the link. [Priority 3] all, especially bl, low vision none all
Checkpoint 9.7: Provide a mechanism for highlighting and identifying (through a standard interface where available) active elements of a document. [Priority 3] blind, low vision, physical none all
Checkpoint 9.8: For dependent user agents only. Provide access to header information for a selected table cell. [Priority 1] blind, low vision, physical none? speech, braille, small/magnified screen
Checkpoint 9.9: For dependent user agents only. Indicate the row and column dimensions of a selected table. [Priority 3] blind, low vision none speech, braille
Checkpoint 9.10: Provide the user with access to any label explicitly associated with a form control. [Priority 2] blind, low vision none speech, braille, small/magnified screen
Checkpoint 9.11: Maintain consistent user agent behavior and default configurations between software releases. Consistency is less important than accessibility and adoption of system conventions. [Priority 3] all all all
Checkpoint 10.1: Provide information about document and viewport changes (to users and through programming interfaces). [Priority 1] blind, lv? none speech, small/magnified screen
Checkpoint 10.2: Ensure that when the selection or focus changes, it is in the viewport after the change. [Priority 2] all none visual, small/magnified screen
Checkpoint 10.3: Allow the user to selectively turn on and off notification of common types of document and viewport changes. [Priority 3] blind, lv? none ?
Checkpoint 10.4: When loading a resource (e.g., document, video clip, audio clip, etc.) indicate what portion of the resource has loaded and whether loading has stalled. [Priority 3] all, especially bl, lv? none vi?
Checkpoint 10.5: Indicate the relative position of the viewport in a resource (e.g., the percentage of the document that has been viewed, the percentage of an audio clip that has been played, etc.). [Priority 3] all none all
Checkpoint 10.6: Prompt the user to confirm any form submission not explicitly initiated by the user. [Priority 2] blind, low vision, ph? all all?
Checkpoint 11.1: Allow the user to configure the user agent in named profiles that may be shared (by other users or software). [Priority 2] all all all
Checkpoint 11.2: Allow the user to configure the graphical arrangement of user interface controls. [Priority 3] physical, low vision, blind none visual, small/magnified screen
Checkpoint 12.1: Provide a version of the product documentation that conforms to the Web Content Accessibility Guidelines. [Priority 1] all all all
Checkpoint 12.2: Ensure that all user agent functionalities that promote accessibility are documented. [Priority 1] all all all
Checkpoint 12.3: Describe product features known to promote accessibility in a section of the product documentation. [Priority 2] all none all

List presentation

Each checkpoint links to its definition in the User Agent Accessibility Guidelines. A tabular presentation of this list is also available.

Checkpoint 1.1: Ensure that all functionalities offered through the user interface may be operated through standard input device APIs supported by the operating system. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: none
Checkpoint 1.2: Ensure that the user can interact with all active elements of a document in a device independent manner. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 1.3: Ensure that the user can install the user agent software in a device independent manner. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 1.4: Ensure that the user can configure the user agent in a device independent manner. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 1.5: Ensure that the user can access user agent documentation in a device independent manner. [Priority 1]
Disabilities: all
Input Technologies: none
Output Technologies: all
Checkpoint 1.6: Ensure that all messages to the user (e.g., warnings, errors, etc.) are available through standard output device APIs supported by the operating system. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 2.1: By default and without additional customization, ensure that all functionalities offered by the user agent are accessible using the keyboard. [Priority 1]
Disabilities: blind, physical, low vision
Input Technologies: keyboard, voice
Output Technologies: none
Checkpoint 2.2: Provide documentation on default keyboard commands and include with user agent documentation and/or user help system. [Priority 1]
Disabilities: all, especially bl, physical, low vision
Input Technologies: keyboard, voice
Output Technologies: none
Checkpoint 2.3: Provide information to the user about the current keyboard configuration. [Priority 1]
Disabilities: all, especially bl, physical, low vision
Input Technologies: keyboard, voice
Output Technologies: none
Checkpoint 2.4: Allow the user to configure the keystrokes used to activate user agent functionalities. Wherever possible, allow single key activation of functions. [Priority 2]
Disabilities: blind, low vision, physical
Input Technologies: keyboard, voice
Output Technologies: none
Checkpoint 2.5: Allow the user to turn on and off author-specified keyboard configurations. [Priority 2]
Disabilities: blind, low vision, physical
Input Technologies: keyboard, voice
Output Technologies: none
Checkpoint 2.6: Use platform conventions to indicate which keys activate which user agent functionalities. [Priority 2]
Disabilities: all
Input Technologies: keyboard, voice
Output Technologies: all (Are there conventions for non-vi user agents?)
Checkpoint 2.7: Avoid default keyboard configurations that interfere with system conventions. [Priority 2]
Disabilities: all
Input Technologies: keyboard, voice
Output Technologies: none
Checkpoint 2.8: Provide a default keyboard configuration for frequently performed operations. [Priority 3]
Disabilities: all, especially bl, low vision, physcial
Input Technologies: keyboard, voice
Output Technologies: none
Checkpoint 3.1: Ensure that the user has access to document content, including alternative representations of content. [Priority 1]
Disabilities: all, especially bl, low vision, deaf, hard of hearing, cognitive/learning, ep (e.g. descriptions of animations)
Input Technologies: all
Output Technologies: all
Checkpoint 3.2: For dependent user agents only. Ensure that the user has access to the content of an element selected by the user. [Priority 1]
Disabilities: all, especially bl, lv??
Input Technologies: all
Output Technologies: all
Checkpoint 3.3: For dependent user agents only. Render content according to natural language identification. For unsupported natural languages, notify the user of language changes when configured to do so. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 3.4: Provide time-independent access to time-dependent active elements or allow the user to control the timing of changes. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 3.5: When no alternative text representation has been specified, indicate what type of object is present. [Priority 2]
Disabilities: blind, low vision
Input Technologies: none
Output Technologies: speech, small/magnified screen
Checkpoint 3.6: When alternative text has been specified explicitly as empty (i.e., an empty string), render nothing. [Priority 3]
Disabilities: blind, low vision, cognitive/learning
Input Technologies: none
Output Technologies: all
Checkpoint 3.7: Allow the user to specify that description tracks (e.g., caption, auditory description, video of sign language, etc.) be rendered at the same time as audio and video tracks. [Priority 1]
Disabilities: blind, low vision, deaf, hard of hearing, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech, braille
Checkpoint 3.8: If a technology allows for more than one description track (e.g., caption, auditory description, video of sign language, etc.), allow the user to choose from among the tracks. [Priority 1]
Disabilities: blind, low vision, deaf, hard of hearing, co (or all?)
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech
Checkpoint 3.9: If a technology allows for more than one audio track, allow the user to choose from among tracks. [Priority 1]
Disabilities: all?
Input Technologies: none
Output Technologies: audio
Checkpoint 4.1: Allow the user to turn on and off rendering of images. [Priority 1]
Disabilities: blind, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech
Checkpoint 4.2: Allow the user to turn on and off rendering of background images. [Priority 1]
Disabilities: blind, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech
Checkpoint 4.3: Allow the user to turn on and off rendering of video. [Priority 1]
Disabilities: blind, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech
Checkpoint 4.4: Allow the user to turn on and off rendering of sound. [Priority 1]
Disabilities: all
Input Technologies: none
Output Technologies: vi user agent with sound, audio, speech
Checkpoint 4.5: Allow the user to turn on and off rendering of audio captions. [Priority 1]
Disabilities: deaf, hard of hearing, cognitive/learning, [lv and bl - to avoid interference]
Input Technologies: none
Output Technologies: audio, visual, [sp;br;sc]
Checkpoint 4.6: Allow the user to turn on and off animated or blinking text. [Priority 1]
Disabilities: blind, low vision, cognitive/learning, epilepsy
Input Technologies: none
Output Technologies: visual, braille, small/magnified screen
Checkpoint 4.7: Allow the user to turn on and off animations and blinking images. [Priority 1]
Disabilities: blind, low vision, cognitive/learning, epilepsy
Input Technologies: none
Output Technologies: visual, braille, speech, small/magnified screen
Checkpoint 4.8: Allow the user to turn on and off support for scripts and applets. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 4.9: Allow the user to turn on and off support for user style sheets. [Priority 1]
Disabilities: all
Input Technologies: none
Output Technologies: all
Checkpoint 4.10: Allow the user to turn on and off support for author style sheets. [Priority 1]
Disabilities: all
Input Technologies: none
Output Technologies: all
Checkpoint 4.11: Allow the user to turn on and off support for spawned windows. [Priority 1]
Disabilities: blind, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, speech, small/magnified screen
Checkpoint 4.12: Allow the user to turn on and off rendering of frames. [Priority 2]
Disabilities: blind, low vision, cognitive/learning, (ph? -efficiency)
Input Technologies: keyboard, voice
Output Technologies: small/magnified screen, speech, braille
Checkpoint 4.13: Allow the user to turn on and off author-specified page forwards that occur after a time delay and without user intervention. [Priority 3]
Disabilities: blind, low vision
Input Technologies: none
Output Technologies: all
Checkpoint 4.14: Allow the user to turn on and off automatic page refresh. [Priority 3]
Disabilities: blind, low vision
Input Technologies: ?
Output Technologies: ?
Checkpoint 5.1: Allow the user to control font family. [Priority 1]
Disabilities: all, especially lv
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 5.2: Allow the user to control the size of text. [Priority 1]
Disabilities: all, especially lv
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech
Checkpoint 5.3: Allow the user to control foreground color. [Priority 1]
Disabilities: color deficit, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 5.4: Allow the user to control background color. [Priority 1]
Disabilities: color deficit, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 5.5: Allow the user to control selection highlighting (e.g., foreground and background color). [Priority 1]
Disabilities: color deficit, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech
Checkpoint 5.6: Allow the user to control focus highlighting (e.g., foreground and background color). [Priority 1]
Disabilities: color deficit, low vision, cognitive/learning
Input Technologies: none
Output Technologies: visual, small/magnified screen, speech
Checkpoint 5.7: Allow the user to control animation rate. [Priority 2]
Disabilities: low vision, cognitive/learning, epilepsy
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 5.8: Allow the user to control video frame rates. [Priority 1]
Disabilities: low vision, cognitive/learning, epilepsy
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 5.9: Allow the user to control the position of audio captions. [Priority 1]
Disabilities: deaf, hard of hearing, cognitive/learning, low vision
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 5.10: Allow the user to start, stop, pause, and rewind video. [Priority 2]
Disabilities: all
Input Technologies: none
Output Technologies: visual
Checkpoint 5.11: Allow the user to control audio playback rate. [Priority 1]
Disabilities: all, blind, low vision, cognitive/learning
Input Technologies: none
Output Technologies: audio
Checkpoint 5.12: When the user agent renders audio natively, allow the user to control the audio volume. [Priority 2]
Disabilities: all
Input Technologies: none
Output Technologies: audio
Checkpoint 5.13: Allow the user to start, stop, pause, and rewind audio. [Priority 2]
Disabilities: all
Input Technologies: none
Output Technologies: audio
Checkpoint 5.14: Allow the user to control speech playback rate. [Priority 1]
Disabilities: blind, cognitive/learning, hard of hearing
Input Technologies: none
Output Technologies: speech
Checkpoint 5.15: Allow the user to control speech volume, pitch, gender and other articulation characteristics. [Priority 2]
Disabilities: blind, low vision, cognitive/learning, hard of hearing
Input Technologies: none
Output Technologies: speech
Checkpoint 5.16: When new windows or user interface components are spawned, allow the user to control window size and position. [Priority 2]
Disabilities: lv?
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 6.1: Use and provide accessible interfaces to other technologies. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 6.2: Provide programmatic read and write access to user agent functionalities and user interface controls (including selection and focus) by using operating system and development language accessibility resources and conventions. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 6.3: Notify dependent user agents of changes to the document and user interface controls (including selection and focus) by using operating system and development language accessibility resources and conventions. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 6.4: For graphical desktop browsers only. Comply with W3C Document Object Model specifications and export interfaces defined by those specifications. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 6.5: For graphical desktop browsers only. Provide programmatic exchange of information in a timely manner. [Priority 2]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 6.6: Follow operating system conventions and accessibility settings. In particular, follow conventions for user interface design, default keyboard configuration, product installation, and documentation. [Priority 2]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 7.1: Implement the accessibility features defined for supported specifications. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 7.2: Support appropriate W3C Recommendations. [Priority 2]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 8.1: Allow the user to navigate viewports (including frames). [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 8.2: For user agents that offer a browsing history mechanism, when the user returns to a previous view, restore the point of regard in the viewport. [Priority 1]
Disabilities: all
Input Technologies: none
Output Technologies: all
Checkpoint 8.3: For dependent user agents only. Allow the user to navigate just among table cells of a table (notably left and right within a row and up and down within a column). [Priority 1]
Disabilities: blind, low vision, ph?
Input Technologies: keyboard, voice
Output Technologies: speech, braille, small/magnified screen
Checkpoint 8.4: Allow the user to navigate just among all active elements in the document. [Priority 2]
Disabilities: all
Input Technologies: all
Output Technologies: all (or none?)
Checkpoint 8.5: Allow the user to search for rendered text content, including alternative text content. [Priority 2]
Disabilities: all, especially bl, low vision, cognitive/learning
Input Technologies: none
Output Technologies: all, especially sp, small/magnified screen, braille, (au - closed captions?)
Checkpoint 8.6: Allow the user to navigate the document structure. [Priority 2]
Disabilities: blind, low vision, phyiscal (co?)
Input Technologies: keyboard, voice
Output Technologies: visual, speech, braille, small/magnified screen
Checkpoint 8.7: Allow the user to configure structured navigation. [Priority 3]
Disabilities: blind, low vision, co?
Input Technologies: all
Output Technologies: all
Checkpoint 9.1: Provide a mechanism for highlighting and identifying (through a standard interface where available) the current viewport, selection, and focus. [Priority 1]
Disabilities: all
Input Technologies: none
Output Technologies: all (Does highlighting imply vi only interfaces?)
Checkpoint 9.2: For dependent user agents only. Provide the user with information about the number of viewports. [Priority 2]
Disabilities: blind, low vision
Input Technologies: none
Output Technologies: speech, braille, small/magnified screen
Checkpoint 9.3: For dependent user agents only. Allow the user to view a document outline constructed from its structural elements (e.g., from header and list elements). [Priority 2]
Disabilities: blind, low vision, (co?)
Input Technologies: none
Output Technologies: visual, speech, braille, small/magnified screen
Checkpoint 9.4: Describe a selected element's context within a document (e.g., numerical or relative position). [Priority 2]
Disabilities: blind, low vision
Input Technologies: keyboard, voice
Output Technologies: speech, braille, small/magnified screen
Checkpoint 9.5: For a selected link, indicate whether following the link will involve a fee. [Priority 2]
Disabilities: all?, especially bl, low vision, cognitive/learning
Input Technologies: none
Output Technologies: all?
Checkpoint 9.6: For a selected link, provide information to help the user decide whether to follow the link. [Priority 3]
Disabilities: all, especially bl, low vision
Input Technologies: none
Output Technologies: all
Checkpoint 9.7: Provide a mechanism for highlighting and identifying (through a standard interface where available) active elements of a document. [Priority 3]
Disabilities: blind, low vision, physical
Input Technologies: none
Output Technologies: all
Checkpoint 9.8: For dependent user agents only. Provide access to header information for a selected table cell. [Priority 1]
Disabilities: blind, low vision, physical
Input Technologies: none?
Output Technologies: speech, braille, small/magnified screen
Checkpoint 9.9: For dependent user agents only. Indicate the row and column dimensions of a selected table. [Priority 3]
Disabilities: blind, low vision
Input Technologies: none
Output Technologies: speech, braille
Checkpoint 9.10: Provide the user with access to any label explicitly associated with a form control. [Priority 2]
Disabilities: blind, low vision
Input Technologies: none
Output Technologies: speech, braille, small/magnified screen
Checkpoint 9.11: Maintain consistent user agent behavior and default configurations between software releases. Consistency is less important than accessibility and adoption of system conventions. [Priority 3]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 10.1: Provide information about document and viewport changes (to users and through programming interfaces). [Priority 1]
Disabilities: blind, lv?
Input Technologies: none
Output Technologies: speech, small/magnified screen
Checkpoint 10.2: Ensure that when the selection or focus changes, it is in the viewport after the change. [Priority 2]
Disabilities: all
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 10.3: Allow the user to selectively turn on and off notification of common types of document and viewport changes. [Priority 3]
Disabilities: blind, lv?
Input Technologies: none
Output Technologies: ?
Checkpoint 10.4: When loading a resource (e.g., document, video clip, audio clip, etc.) indicate what portion of the resource has loaded and whether loading has stalled. [Priority 3]
Disabilities: all, especially bl, lv?
Input Technologies: none
Output Technologies: vi?
Checkpoint 10.5: Indicate the relative position of the viewport in a resource (e.g., the percentage of the document that has been viewed, the percentage of an audio clip that has been played, etc.). [Priority 3]
Disabilities: all
Input Technologies: none
Output Technologies: all
Checkpoint 10.6: Prompt the user to confirm any form submission not explicitly initiated by the user. [Priority 2]
Disabilities: blind, low vision, ph?
Input Technologies: all
Output Technologies: all?
Checkpoint 11.1: Allow the user to configure the user agent in named profiles that may be shared (by other users or software). [Priority 2]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 11.2: Allow the user to configure the graphical arrangement of user interface controls. [Priority 3]
Disabilities: physical, low vision, blind
Input Technologies: none
Output Technologies: visual, small/magnified screen
Checkpoint 12.1: Provide a version of the product documentation that conforms to the Web Content Accessibility Guidelines. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 12.2: Ensure that all user agent functionalities that promote accessibility are documented. [Priority 1]
Disabilities: all
Input Technologies: all
Output Technologies: all
Checkpoint 12.3: Describe product features known to promote accessibility in a section of the product documentation. [Priority 2]
Disabilities: all
Input Technologies: none
Output Technologies: all