|Pull||Issue||Short Name and Link to Draft||Level||Task F||Who does it help? How?|
|112||2||Change of content||AA||MATF||Users of AT who can't see changes or have trouble perceiving changes on a page. Their AT will say short phrase about new content||
Programmatic notification is provided for each change in content
that indicates an action was taken or that conveys information,
unless one or more of the following is true:
|100||9||Graphic Contrast (Minimum)||AA||LVTF||
People with low vision and cognitive disabilities who have trouble seeing or peceiving information in graphics
visual presentation of important information in graphical elements
has a contrast ratio of at least 4.5:1 against the immediate
surrounding background, except for the following:
Thicker lines: where the minimum width of the line is at least 3px the graphic has a contrast ratio of at least 3:1
Incidental: Graphical elements that are not required for the understanding of the graphic, that are pure decoration have no contrast requirement
Alternative: Graphical elements that have an alternative conforming version available from the same page have no contrast requirement
Logotypes: Graphics that are part of a logo or brand name have no minimum contrast requirement.
(Note: 1.4.3's exceptions including logotypes still pertain.)
|128||10||User Interface Component Contrast (Minimum)||AA||LVTF||People with low vision and cognitive disabilities who have trouble seeing or peceiving interactive components||The
visual presentation of
essential graphical objects for user interface component(s) or a border line thereof, and
-the focus and selection indicator(s) of user interface component(s),
-has a contrast ratio of at least 4.5:1 against the immediate surrounding color(s),
except for the situations listed below:
Thicker: A contrast ratio of 3:1 is required where the minimum width and height are at least 3 CSS pixels, for either the graphical object or (one of) their border line(s).
Inactive: Disabled or otherwise inactive user interface components are exempt from this requirement. In all other states (including when the page is scrolled) the contrast requirement is applicable.
|97||13||Minimize user errors||AA||COGA||People with cognitive and other disabilities who have trouble filling in forms and knowing where there was a mistake.||Common input errors are automatically corrected where the corrections can be reliably made.|
|116||14||Timeouts||A||COGA||People with low vision and cognitive disabilities who have trouble completing things in time.||Where
content can time out, the content must also conform to all of the
Loss of data
The user can easily return to the same point in a task, without data loss, for a period of at least one week as the default, or via a user-settable option available throughout the task. If the data will only be preserved for a limited time, the user is informed of the length of time that data are preserved at the start of the task.
The function to turn off, adjust, or extend timing is controlled by a simple action, and is labeled with simple, understandable language.
The user is informed of timeout limits at the start of the task, including the length of the warning.
|135||30||Plain language (Miniumum)||A||COGA||People with cognitive and reading disabilities who have trouble understanding complex sentences and vocabulary.||
Provide clear and simple language in instructions, labels,
navigational elements, and error messages, which require a
response to continue, so that all of the following are true:
Use the present tense and active voice.
Simple, clear and common words
Use words or phrases that are most-frequently used for the current
context, unless it will result in a loss of meaning or clarity.
This includes not using abbreviations, words, or phrases, unless
they are the common form to refer to concepts for beginners. Where
word frequencies are known for the context, they can be used.
Double negatives are not used.
|129||32||Provide Support||AA||COGA||People with cognitive and reading disabilities who have trouble understanding complex sentences and vocabulary.||Content
is provided that helps users understand complex information, long
documents, numerical information, relative and cardinal directions,
forms and non-standard controls.
|38||Undo||AA||COGA||People with cognitive and other disabilities who may take an action that causes trouble.||Users
are provided with the ability to undo an action and to correct
mistakes such that:
a user can go back steps in a process via a clearly labeled action; or
the user can repair information via a clearly labeled action and get back to the place they were at, via a clearly labeled action, without unwanted loss of data.
|98||47||Interruptions (minimum)||A||COGA||People with cognitive and other disabilities who may be thrown off the task at hand by interuptions.||There
is an easily available mechanism to postpone and suppress
interruptions and changes in content unless they are initiated by
the user or involve an emergency.
|121||49||Familiar Design (Minimum)||A||COGA||People with cognitive and other disabilities who may be thrown off by a new UI design pattern.||Help,
navigation to help and search forms are easily identifiable and
available to the user in one or more of the following ways:
A platform specific user interface design.
An adaptive user interface design that can be personalized.
User interface from a prior version
A user interface design that was used successfully by users in a prior version of the application.
Exception: The style is an essential part of the main function of the site, such as for a game
|115||50||Extra Symbols||AA||COGA||People with cognitive and other disabilities who better understand content if their are supporting images, symbols, or icons.||A mechanism is available such that controls that are used to reach, or are part of, a critical service, and each instruction that contains important information that directly relates to a critical service, is preceded by a symbol or picture, which relates to the topic of the control or instruction.|
|89||58||Linearization||A||LVTF||People with tunnel vision, low vision or other disabilities who may miss part of the viewport, or may have zoomed into a page only to fine it necessary to horizontally scroll each line to read it.||A mechanism is available to view content as a single column, except for parts of the content where the spatial layout is essential to the function and understanding of the content.|
|60||Target Size||A||MATF||People on mobile devices who may have trouble hitting the taget due to dexterity disabilities.||The
size of each interactive target in relation to the visible display
at the default viewport size is at least:
• 44px by 44px for pointer inputs with coarse pointing accuracy (such as a touchscreen)
• 24px by 24px for pointer inputs with fine pointing accuracy (such as a mouse, trackpad or stylus)
With the exception of inline link, button or control which have no requirements unless it performs essential functionality, or is the only way to perform an action. Then one dimension is 44px and the other is at least 22px.
|132||61||Pointer gestures||A||MATF||People who cannot use pressure, tilt, rotate etc. controls on a stylus, or multi finger gestures, primarily on mobile and other touch surfaces||Functionality
requiring complex or timed pointer gestures or multi-pointer
gestures can also be operated with simple pointer gestures.
|131||63||Touch with Assistive Technology||A||MATF||Screen reader users who'se software interupts the swipes and uses them to operate the screen reader software.||All functions available by touch are still available by touch after platform assistive technology that remaps touch gestures is turned on.|
single pointer activation, at least one of the following is true:
-Activation is on the up-event, either explicitly or implicitly as a platform's generic activation/click event;
-A mechanism is available that allows the user to choose the up-event as an option;
-Confirmation is provided, which can dismiss activation;
-Activation is reversible;
-Timing of activation is essential and waiting for the up-event would invalidate the activity.
|144||66||Pointer inputs with additional sensors||A||MATF||All pointer functionality can be operated using screen coordinate information, without requiring additional pointer sensor information.|
functionality of the content can be operated without requiring
specific device sensor information unless the device sensor is
essential for the function and not using it would invalidate the
functionality of the content does not obstruct a user’s
ability to access the commands through speech input. (Level A)
|133||69||Single key shortcut alternative||AA||MATF||Single
character shortcuts are not the only way activate a control, unless
a mechanism is available to turn them off or remap them to
shortcuts with two or more characters.
|142||70||Orientation||AA||MATF||Content is not locked to a specific orientation, and functionality of the content is operable in all orientations, except where orientation is essential for use of the content.|
informational content that appears on hover or focus, one of the
following is true:
Turn Off: the informational content can be turned off
Not obscure: the informational content does not obsure the triggering content
content can printed, the following are true:
Content can be resized up to 200% without loss of content or functionality;
User changes to letter spacing, line spacing, font family, and color are reflected in the printed content.
|120||77||Resize content||A||LVTF||Content can be resized to 400% without loss of content or functionality, and without requiring two-dimensional scrolling except for parts of the content where fixed spatial layout is necessary to use or meaning.|
loss of content or functionality on a webpage is caused by
font family to Verdana, or
foreground and background to white on black, or
line height of all text to 1.5, letter spacing to 0.12em, and word spacing to 0.16em.
|96||18||Animation from interactions||A||ADHOC||For
significant animation triggered by a user action that is not an
essential part of the action, there is a mechanism for the user to
pause, stop or hide the animation whilst still performing the same
Significant animation: animation which continues for more than 3 seconds or is synchronized with a user action and persists for the duration of the action, and affects more than 1/3 of the viewport.