Comparison: WCAG 2.0 – WDAR with WCAG as Basis

1.1.1 Non-text Content: All non-text content that is presented to the user has a text alternative that serves the equivalent purpose, except for the situations listed below.:
(Level A)

• Controls, Input: If non-text content is a control or accepts user input, then it has a namethat describes its purpose.

• Time-Based Media: If non-text content is time-based media, then text alternatives at least provide descriptive identification of the non-text content.

• Test: If non-text content is a test or exercise that would be invalid if presented in text, then text alternatives at least provide descriptive identification of the non-text content.

• Sensory: If non-text content is primarily intended to create a specific sensory experience, then text alternatives at least provide descriptive identification of the non-text content.

• CAPTCHA: If the purpose of non-text content is to confirm that content is being accessed by a person rather than a computer, then text alternatives that identify and describe the purpose of the non-text content are provided, and alternative forms of CAPTCHA using output modes for different types of sensory perception are provided to accommodate different disabilities.

• Decoration, Formatting, Invisible: If non-text content is pure decoration, is used only for visual formatting, or is not presented to users, then it is implemented in a way that it can be ignored by assistive technology.

MS 1 – 3 – Attach ALT<alt> (alternative) text to graphic images so that assistive computer technology such as screen readers can reach the content.

MS 2 – 1 – For ALT texts:
   2 – 1.1 – Decorative images must contain null ALT text or ALT="".
   2 – 1.2 – Anchor elements within the Image Maps must contain ALT texts.
   2 – 1.3 – Alternate texts that require more than 80 characters must instead be changed to "D" hyperlink.

1.2.1 Audio-only and Video-only (Prerecorded): For prerecorded audio-only and prerecorded video-only media, the following are true, except when the audio or video is amedia alternative for text and is clearly labeled as such: (Level A)

• Prerecorded Audio-only: An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content.

• Prerecorded Video-only:Either an alternative for time-based media or an audio track is provided that presents equivalent information for prerecorded video-only content.

MS 1 – 7 – Avoid access barriers like: PDF files with no equivalent HTML or ASCII files, non-linear page formats, frame formats and content that requires user to download software to access it.

MS 2-14 – Page style must be consistent all throughout the website.

1.3.3 Sensory Characteristics: Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, size, visual location, orientation, or sound. (Level A)

1.4.1 Use of Color: Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element. (Level A)

1.4.2 Audio Control: If any audio on a Web page plays automatically for more than 3 seconds, either a mechanism is available to pause or stop the audio, or a mechanism is available to control audio volume independently from the overall system volume level. (Level A)

1.4.3 Contrast (Minimum): The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following: (Level AA)

• Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 3:1;

• Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement.

• Logotypes: Text that is part of a logo or brand name has no minimum contrast requirement.

1.4.4 Resize text: Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality. (Level AA)

1.4.5 Images of Text: If the technologies being used can achieve the visual presentation, text is used to convey information rather than images of text except for the following: (Level AA)

• Customizable: The image of text can be visually customized to the user’s requirements;

• Essential: A particular presentation of text is essential to the information being conveyed.

MS 2 – 9 – Avoid using the FONT SIZE markup in your web pages or change the size to relative units.

MS 2 – 1 – For ALT texts:
   2 – 1.1 – Decorative images must contain null ALT text or ALT="".
   2 – 1.2 – Anchor elements within the Image Maps must contain ALT texts.
   2 – 1.3 – Alternate texts that require more than 80 characters must instead be changed to "D" hyperlink.

1.4.6 Contrast (Enhanced): The visual presentation of text and images of text has a contrast ratio of at least 7:1, except for the following: (Level AAA)

• Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least4.5:1;

• Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement.

• Logotypes: Text that is part of a logo or brand name has no minimum contrast requirement.

MS 2 – 9 – Avoid using the FONT SIZE markup in your web pages or change the size to relative units.

MS 2-15 – Provide enough contrast between foreground and background color combinations.

1.4.7 Low or No Background Audio: For prerecorded audio-only content that (1) contains primarily speech in the foreground, (2) is not an audio CAPTCHA or audio logo, and (3) is not vocalization intended to be primarily musical expression such as singing or rapping, at least one of the following is true: (Level AAA)

• No Background: The audio does not contain background sounds.

• Turn Off: The background sounds can be turned off.

• 20 dB: The background sounds are at least 20 decibels lower than the foreground speech content, with the exception of occasional sounds that last for only one or two seconds.

  Note: Per the definition of "decibel," background sound that meets this requirement will be approximately four times quieter than the foreground speech content.

1.4.8 Visual Presentation: For the visual presentation of blocks of text, a mechanism is available to achieve the following: (Level AAA)

1. Foreground and background colors can be selected by the user.

2. Width is no more than 80 characters or glyphs (40 if CJK).

3. Text is not justified (aligned to both the left and the right margins).

4. Line spacing (leading) is at least space-and-a-half within paragraphs, and paragraph spacing is at least 1.5 times larger than the line spacing.

5. Text can be resized without assistive technology up to 200 percent in a way that does not require the user to scroll horizontally to read a line of text on a full-screen window.

1.4.9 Images of Text (No Exception): Images of text are only used for pure decoration or where a particular presentation of text is essential to the information being conveyed. (Level AAA)

2.1.1 Keyboard: All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes, except where the underlying function requires input that depends on the path of the user’s movement and not just the endpoints. (Level A)

2.1.2 No Keyboard Trap: If keyboard focus can be moved to a component of the page using a keyboard interface, then focus can be moved away from that component using only a keyboard interface, and, if it requires more than unmodified arrow or tab keys or other standard exit methods, the user is advised of the method for moving focus away. (Level A)

2.2.1 Timing Adjustable: For each time limit that is set by the content, at least one of the following is true: (Level A)

• Turn off: The user is allowed to turn off the time limit before encountering it; or

• Adjust: The user is allowed to adjust the time limit before encountering it over a wide range that is at least ten times the length of the default setting; or

• Extend: The user is warned before time expires and given at least 20 seconds to extend the time limit with a simple action (for example, "press the space bar"), and the user is allowed to extend the time limit at least ten times; or

• Real-time Exception: The time limit is a required part of a real-time event (for example, an auction), and no alternative to the time limit is possible; or

• Essential Exception: The time limit is essential and extending it would invalidate the activity; or

• 20 Hour Exception: The time limit is longer than 20 hours.

2.2.2 Pause, Stop, Hide: For moving, blinking, scrolling, or auto-updating information, all of the following are true: (Level A)

• Moving, blinking, scrolling:For any moving, blinking or scrolling information that (1) starts automatically, (2) lasts more than five seconds, and (3) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it unless the movement, blinking, or scrolling is part of an activity where it is essential; and

• Auto-updating: For any auto-updating information that (1) starts automatically and (2) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it or to control the frequency of the update unless the auto-updating is part of an activity where it is essential.

2.3.1 Three Flashes or Below Threshold: Web pages do not contain anything that flashes more than three times in any one second period, or the flash is below the general flash and red flash thresholds. (Level A)

MS 1 – 2 – Avoid using words such as "This" or "Click Here" in creating links.
Use descriptive hyperlinks to support text browsers.

MS 2 – 1 – For ALT texts:
   2 – 1.1 – Decorative images must contain null ALT text or ALT="".
   2 – 1.2 – Anchor elements within the Image Maps must contain ALT texts.
   2 – 1.3 – Alternate texts that require more than 80 characters must instead be changed to "D" hyperlink.

MS 2 – 8 – Provide a LABEL text and ALT text on the input elements of your forms.

MS 1 – 2 – Avoid using words such as "This" or "Click Here" in creating links.
Use descriptive hyperlinks to support text browsers.

MS 2 – 2 – Provide a Site Map with a link appearing on every page.

MS 2 – 10 – Provide a Search form within your site.

MS 2 – 8 – Provide a LABEL text and ALT text on the input elements of your forms.

MS 1 – 2 – Avoid using words such as "This" or "Click Here" in creating links.
Use descriptive hyperlinks to support text browsers.

MS 2 – 3 – All pages must provide a link back to the home page. (Use of breadcrumbs)

MS 2 – 5 – Provide a "Skip to Content" link in every page.

MS 2 – 8 – Provide a LABEL text and ALT text on the input elements of your forms.

2.4.10 Section Headings: Section headings are used to organize the content. (Level AAA)

3.1.2 Language of Parts: The human language of each passage or phrase in the content can be programmatically determined except for proper names, technical terms, words of indeterminate language, and words or phrases that have become part of the vernacular of the immediately surrounding text. (Level AA)

MS 2 – 3 – All pages must provide a link back to the home page.

MS 2 – 11 – Layout must be navigable even if the page style is turned off.

MS 2-14 – Page style must be consistent all throughout the website.

MS 2 – 3 – All pages must provide a link back to the home page.

MS 2-14 – Page style must be consistent all throughout the website.

3.3.4 Error Prevention (Legal, Financial, Data): For Web pages that cause legal commitments or financial transactions for the user to occur, that modify or delete user-controllable data in data storage systems, or that submit user test responses, at least one of the following is true: (Level AA)

1. Reversible: Submissions are reversible.

2. Checked: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.

3. Confirmed: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.

3.3.6 Error Prevention (All): For Web pages that require the user to submit information, at least one of the following is true: (Level AAA)

1. Reversible: Submissions are reversible.

2. Checked: Data entered by the user is checked for input errors and the user is provided an opportunity to correct them.

3. Confirmed: A mechanism is available for reviewing, confirming, and correcting information before finalizing the submission.

4.1.1 Parsing: In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features. (Level A)

4.1.2 Name, Role, Value: For all user interface components (including but not limited to: form elements, links and components generated by scripts), the name and role can be programmatically determined; states, properties, and values that can be set by the user can be programmatically set; and notification of changes to these items is available to user agents, including assistive technologies. (Level A)

MS 1 – 7 – Avoid access barriers like: PDF files with no equivalent HTML or ASCII files, non-linear page formats, frame formats and content that requires user to download software to access it.

MS 2 – 11 – Layout must be navigable even if the page style is turned off.