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The following outlines the SimpleUI's compliance against relevant WCAG 2.0 requirements.

Area#GuidelineAssessment
Text Alternatives1.1Provide text alternatives for any non-text content so that it can be changed into other forms people need, such as large print, braille, speech, symbols or simpler language. 
Non-text Content (Level A)1.1.1 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. Guideline Met
Time-based Media1.2Provide alternatives for time-based media.Guideline N/A - the SimpleUI does not use time-based media
Adaptable1.3 Create content that can be presented in different ways (for example simpler layout) without losing information or structure 
Info and Relationships (Level A)1.3.1Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text.Guideline Met
Meaningful Sequence (Level A)1.3.2When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined. Guideline Met
Sensory Characteristics (Level A)1.3.3Instructions provided for understanding and operating content do not rely solely on sensory characteristics of components such as shape, size, visual location, orientation, or sound. Guideline Met
Distinguishable1.4 Make it easier for users to see and hear content including separating foreground from background. 
Use of Color (Level A)1.4.1 Color is not used as the only visual means of conveying information, indicating an action, prompting a response, or distinguishing a visual element. Guideline Met
Audio Control (Level A)1.4.2 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. Guideline N/A - the SimpleUI does not use audio
Contrast (Minimum) (Level AA)1.4.3 
The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following: 
  • 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.
Guideline Met
Resize text (Level AA)1.4.4Except for captions and images of text, text can be resized without assistive technology up to 200 percent without loss of content or functionality.Guideline Met
Images of Text (Level AA)1.4.5
If the technologies being used can achieve the visual presentation, text is used to convey information rather than images of textexcept for the following: 
  • 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. 

Note: Logotypes (text that is part of a logo or brand name) are considered essential.
Guideline Met
Contrast (Enhanced) (Level AAA)1.4.6
The visual presentation of text and images of text has a contrast ratio of at least 7:1, except for the following: 
  • Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 4.5:1; 

  • 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. 

Guideline Not Met
Low or No Background Audio (Level AAA)1.4.7For 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: Guideline N/A - the SimpleUI does not use audio content
Visual Presentation (Level AAA)1.4.8
For the visual presentation of blocks of text, a mechanism is available to achieve the following: 
 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.
Guideline Not Met
Images of Text (No Exception) (Level AAA)1.4.9Images of text are only used for pure decoration or where a particular presentation of text is essential to the information being conveyed.Guideline Met
Keyboard Accessible2.1 Make all functionality available from a keyboard. 
Keyboard (Level A)2.1.1 
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. 
Guideline Met
No Keyboard Trap (Level A)2.1.2 
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. 
Guideline Met
Keyboard (No Exception) (Level AAA)2.1.3 
All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes. 
Guideline Met
Enough Time2.2 Provide users enough time to read and use content. 
Timing Adjustable (Level A)2.2.1 
For each time limit that is set by the content, at least one of the following is true: 
  • 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. 
Guideline Met
Pause, Stop, Hide (Level A)2.2.2 
For moving, blinking, scrolling, or auto-updating information, all of the following are true: 
  • 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. 

Guideline Met
No Timing (Level AAA)2.2.3 Timing is not an essential part of the event or activity presented by the content, except for non-interactive synchronized media andreal-time events. Guideline Met
Interruptions (Level AAA)2.2.4 Interruptions can be postponed or suppressed by the user, except interruptions involving an emergency. Guideline Met
Re-authenticating (Level AAA)2.2.5 
When an authenticated session expires, the user can continue the activity without loss of data after re-authenticating. 
Guideline Met

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