A list of current W3C Recommendations and other technical documents
can be found at http://www.w3.org/TR.
Each checkpoint links to its definition in the User Agent
Accessibility Guidelines. A list presentation of this
table is also available.
| Checkpoint | Disabilities | Input Technologies | Output Technologies |
|---|
| Checkpoint 1.1: Ensure that every functionality offered through the user interface is available through every input device API used by the user agent. User agents are not required to reimplement low-level functionalities (e.g., for character input or pointer motion) that are inherently bound to a particular API and most naturally accomplished with that API. [Priority 1]
|
all |
all |
none |
| Checkpoint 1.2: Use the standard input and output device APIs of the operating system. [Priority 1]
|
all |
all |
all |
| Checkpoint 1.3: Ensure that the user can interact with all active elements in a device-independent manner. [Priority 1]
|
all |
all |
all |
| Checkpoint 1.4: Ensure that every functionality offered through the user interface is available through the standard keyboard API. [Priority 1]
|
blind, physical, low vision |
keyboard, voice |
none |
| Checkpoint 1.5: Ensure that all messages to the user (e.g., informational messages, warnings, errors, etc.) are available through all output device APIs used by the user agent. Do not bypass the standard output APIs when rendering information (e.g., for reasons of speed, efficiency, etc.). [Priority 1]
|
all |
none |
all |
| Checkpoint 2.1: Ensure that the user has access to all content, including alternative equivalents for content. [Priority 1]
|
all, especially bl, low vision, deaf, hard of hearing, cognitive/learning, ep (e.g. descriptions of animations) |
all |
all |
| Checkpoint 2.2: For presentations that require user interaction within a specified time interval, allow the user to control the time interval (e.g., by allowing the user to pause and restart the presentation, to slow it down, etc.). [Priority 1]
|
all |
all |
all |
| Checkpoint 2.3: When no text equivalent has been supplied for an object, make available author-supplied information to help identify the object (e.g., object type, file name, etc.). [Priority 2]
|
blind, low vision |
none |
speech, small/magnified screen |
| Checkpoint 2.4: When a text equivalent for content is explicitly empty (i.e., an empty string), render nothing. [Priority 3]
|
blind, low vision, cognitive/learning |
none |
all |
| Checkpoint 2.5: If more than one alternative equivalent is available for content, allow the user to choose from among the alternatives. This includes the choice of viewing no alternatives. [Priority 1]
|
blind, low vision, deaf, hard of hearing, co (or all?) |
none |
visual, small/magnified screen, speech |
| Checkpoint 2.6: Allow the user to specify that captions and auditory descriptions be rendered at the same time as the associated auditory and visual tracks. [Priority 1]
|
blind, low vision, deaf, hard of hearing, cognitive/learning |
none |
visual, small/magnified screen, speech, braille |
| Checkpoint 2.7: For author-identified but unsupported natural languages, allow the user to request notification of language changes in content. [Priority 3]
|
all, especially bl |
none |
audio, speech |
| Checkpoint 3.1: 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 3.2: Allow the user to turn on and off rendering of background audio. [Priority 1]
|
all |
none |
audio |
| Checkpoint 3.3: Allow the user to turn on and off rendering of video. [Priority 1]
|
all, especially bl, low vision, cognitive/learning |
none |
visual, small/magnified screen, speech |
| Checkpoint 3.4: Allow the user to turn on and off rendering of audio. [Priority 1]
|
all, especially df, hard of hearing, cognitive/learning |
none |
audio |
| Checkpoint 3.5: 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 3.6: 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 3.7: Allow the user to turn on and off support for scripts and applets. [Priority 1]
|
all |
all |
all |
| Checkpoint 3.8: Allow the user to turn on and off rendering of images. [Priority 3]
|
blind, low vision, cognitive/learning |
none |
visual, small/magnified screen, speech |
| Checkpoint 3.9: For automatic content changes specified by the author (e.g., content refresh and page forwards), allow the user to slow the rate of change. [Priority 3]
|
blind, low vision, cognitive/learning, epilepsy |
none |
all |
| Checkpoint 4.1: Allow the user to control font family. [Priority 1]
|
all, especially lv |
none |
visual, small/magnified screen |
| Checkpoint 4.2: Allow the user to control the size of text. [Priority 1]
|
all, especially lv |
none |
visual, small/magnified screen, speech |
| Checkpoint 4.3: Allow the user to control foreground color. [Priority 1]
|
color deficit, low vision, cognitive/learning |
none |
visual, small/magnified screen |
| Checkpoint 4.4: Allow the user to control background color. [Priority 1]
|
color deficit, low vision, cognitive/learning |
none |
visual, small/magnified screen |
| Checkpoint 4.5: Allow the user to slow the presentation rate of audio, video, and animations. [Priority 1]
|
all, blind, low vision, cognitive/learning, epilepsy |
none |
audio, visual, small/magnified screen |
| Checkpoint 4.6: Allow the user to start, stop, pause, advance, and rewind audio, video, and animations. [Priority 2]
|
all |
none |
visual, small/magnified screen |
| Checkpoint 4.7: Allow the user to control the audio volume. [Priority 2]
|
all, especially hh |
none |
audio |
| Checkpoint 4.8: Allow the user to control the position of captions on graphical displays. [Priority 1]
|
deaf, hard of hearing, cognitive/learning, low vision |
none |
visual, small/magnified screen |
| Checkpoint 4.9: Allow the user to control synthesized speech playback rate. [Priority 1]
|
all, especially bl, cognitive/learning, hard of hearing |
none |
speech |
| Checkpoint 4.10: Allow the user to control synthesized speech volume. [Priority 1]
|
all, especially hh |
none |
speech |
| Checkpoint 4.11: Allow the user to control synthesized speech pitch, gender, and other articulation characteristics. [Priority 2]
|
blind, low vision |
none |
speech |
| Checkpoint 4.12: Allow the user to select from available author and user style sheets or ignore them. [Priority 1]
|
all |
none |
all |
| Checkpoint 4.13: Allow the user to control how the selection is highlighted (e.g., foreground and background color). [Priority 1]
|
color deficit, low vision, cognitive/learning |
none |
visual, small/magnified screen, speech |
| Checkpoint 4.14: Allow the user to control how the content focus is highlighted (e.g., foreground and background color). [Priority 1]
|
color deficit, low vision, cognitive/learning |
none |
visual, small/magnified screen, speech |
| Checkpoint 4.15: Allow the user to control user agent-initiated spawned viewports. [Priority 2]
|
all, especially bl, low vision, cognitive/learning |
none |
visual, small/magnified screen, speech |
| Checkpoint 5.1: Provide programmatic read and write access to content by conforming to W3C Document Object Model (DOM) specifications and exporting interfaces defined by those specifications. [Priority 1]
|
all |
all |
all |
| Checkpoint 5.2: Provide programmatic read and write access to user agent user interface controls using standard APIs (e.g., platform-independent APIs, standard APIs for the operating system, and conventions for programming languages, plug-ins, virtual machine environments, etc.) [Priority 1]
|
all |
all |
all |
| Checkpoint 5.3: Implement selection, content focus, and user interface focus mechanisms and make them available to users and through APIs. [Priority 1]
|
all |
all;all |
|
| Checkpoint 5.4: Provide programmatic notification of changes to content and user interface controls (including selection, content focus, and user interface focus). [Priority 1]
|
all |
all |
all |
| Checkpoint 5.5: Ensure that programmatic exchanges proceed in a timely manner. [Priority 2]
|
all |
all |
all |
| Checkpoint 5.6: 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 6.1: Implement the accessibility features of supported specifications (markup languages, style sheet languages, metadata languages, graphics formats, etc.). [Priority 1]
|
all |
all |
all |
| Checkpoint 6.2: Conform to W3C specifications when they are appropriate for a task. [Priority 2]
|
all |
all |
all |
| Checkpoint 7.1: Allow the user to navigate viewports (including frames). [Priority 1]
|
all |
all |
all |
| Checkpoint 7.2: For user agents that offer a browsing history mechanism, when the user returns to a previous viewport, restore the point of regard in the viewport. [Priority 1]
|
especially bl, low vision, physical |
all |
none |
| Checkpoint 7.3: Allow the user to navigate all active elements. [Priority 1]
|
all |
all |
all (or none?) |
| Checkpoint 7.4: Allow the user to navigate just among all active elements. [Priority 2]
|
all |
all |
all (or none?) |
| Checkpoint 7.5: Allow the user to search for rendered text content, including text equivalents of visual and auditory content. [Priority 2]
|
all, especially bl, low vision, cognitive/learning |
none |
all, especially sp, small/magnified screen, braille, (au-closed captions?) |
| Checkpoint 7.6: Allow the user to navigate according to structure. [Priority 2]
|
blind, low vision, physical, (co?) |
keyboard, voice |
visual, speech, braille, small/magnified screen |
| Checkpoint 7.7: Allow the user to configure structured navigation. [Priority 3]
|
blind, low vision, physical, co? |
all |
all |
| Checkpoint 8.1: Convey the author-specified purpose of each table and the relationships among the table cells and headers. [Priority 1]
|
all, especially bl, low vision, cognitive/learning |
none |
all |
| Checkpoint 8.2: Indicate whether a link has been marked up to indicate that following it will involve a fee. [Priority 2]
|
all?, especially bl, low vision, cognitive/learning |
none |
all? |
| Checkpoint 8.3: Provide information to help the user decide whether to follow a link. [Priority 3]
|
all, especially bl, low vision, cognitive/learning |
none |
all |
| Checkpoint 8.4: Provide a mechanism for highlighting and identifying (through a standard interface where available) the current viewport, selection, and content focus. [Priority 1]
|
all |
none |
all?, vi-only interfaces?) |
| Checkpoint 8.5: Provide a "outline" view of content, built from structural elements (e.g., frames, headers, lists, forms, tables, etc.) [Priority 2]
|
all, especially bl, low vision, cognitive/learning |
none |
all |
| Checkpoint 8.6: Allow the user to configure the outline view. [Priority 3]
|
all, especially bl, low vision, cognitive/learning |
none |
all |
| Checkpoint 8.7: Allow the user to configure what information about links to present. [Priority 3]
|
blind, low vision, cognitive/learning |
none |
all |
| Checkpoint 8.8: Provide a mechanism for highlighting and identifying (through a standard interface where available) active elements. [Priority 3]
|
blind, low vision, physical |
none |
all |
| Checkpoint 8.9: Maintain consistent user agent behavior and default configurations between software releases. Consistency is less important than accessibility and adoption of operating system conventions. [Priority 3]
|
all |
all |
all |
| Checkpoint 9.1: Provide information about user agent-initiated content and viewport changes through the user interface and through APIs [Priority 1]
|
blind, low vision, co? |
none |
speech, small/magnified screen |
| Checkpoint 9.2: Ensure that when the selection or content focus changes, it is in a viewport after the change. [Priority 2]
|
all |
none |
visual, small/magnified screen |
| Checkpoint 9.3: Prompt the user to confirm any form submission triggered indirectly, that is by any means other than the user activating an explicit form submit control. [Priority 2]
|
blind, low vision, ph? |
all |
all? |
| Checkpoint 9.4: Allow the user to configure notification preferences for common types of content and viewport changes. [Priority 3]
|
blind, low vision |
none |
? |
| Checkpoint 9.5: When loading content (e.g., document, video clip, audio clip, etc.) indicate what portion of the content has loaded and whether loading has stalled. [Priority 3]
|
blind, low vision |
none |
visual, small/magnified screen, ? |
| Checkpoint 9.6: Indicate the relative position of the viewport in content (e.g., the percentage of an audio or video clip that has been played, the percentage of a Web page that has been viewed, etc.). [Priority 3]
|
blind, low vision |
none |
visual, small/magnified screen, ? |
| Checkpoint 10.1: Provide information directly to the user and through APIs about current user preferences for input configurations (e.g., keyboard or voice bindings). [Priority 1]
|
all, especially bl, low vision, physical |
keyboard, voice |
all |
| Checkpoint 10.2: Provide information directly to the user and through APIs about current author-specified input configurations (e.g., keyboard bindings specified in content such as by "accesskey" in HTML 4.0). [Priority 2]
|
all, especially bl, low vision, physical |
keyboard, voice |
all |
| Checkpoint 10.3: Allow the user to change and control the input configuration. Allow the user to configure the user agent so that some functionalities may be activated with a single command (e.g., single key, single voice command, etc.). [Priority 2]
|
blind, low vision, physical |
keyboard, voice |
none |
| Checkpoint 10.4: Use operating system conventions to indicate the input configuration. [Priority 2]
|
all |
keyboard, voice |
none |
| Checkpoint 10.5: Avoid default input configurations that interfere with operating system conventions. [Priority 2]
|
all |
keyboard, voice |
none |
| Checkpoint 10.6: Allow the user to configure the user agent in named profiles that may be shared on systems with distinct user accounts. [Priority 2]
|
all |
all |
all |
| Checkpoint 10.7: Provide default input configurations for frequently performed tasks. [Priority 3]
|
all, especially bl, low vision, physical |
keyboard, voice |
none |
| Checkpoint 10.8: Allow the user to configure the arrangement of graphical user agent user interface controls. [Priority 3]
|
physical, low vision, blind |
none |
visual, small/magnified screen |
| Checkpoint 11.1: Provide a version of the product documentation that conforms to the Web Content Accessibility Guidelines. [Priority 1]
|
all |
all |
all |
| Checkpoint 11.2: Document all user agent features that promote accessibility. [Priority 1]
|
all |
all |
all |
| Checkpoint 11.3: Document the default input configuration (e.g., default keyboard bindings). [Priority 1]
|
physical, blind, low vision, cognitive/learning |
keyboard, voice |
none |
| Checkpoint 11.4: In a dedicated section, document all features of the user agent that promote accessibility. [Priority 2]
|
all |
none |
all |
Each checkpoint links to its definition in the
User Agent Accessibility Guidelines. A tabular presentation
of this list is also available.