The SimpleUI has been developed with accessibility in mind. It is WCAG 2.0 AA compliant and has been developed using the WAI-ARIA principles.
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The following outlines the SimpleUI's compliance against relevant WCAG 2.0 requirements.
| Area | # | Guideline | Assessment |
|---|---|---|---|
| Text Alternatives | 1.1 | Provide 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 Media | 1.2 | Provide alternatives for time-based media. | Guideline N/A - the SimpleUI does not use time-based media |
| Adaptable | 1.3 | Create content that can be presented in different ways (for example simpler layout) without losing information or structure | |
| Info and Relationships (Level A) | 1.3.1 | Information, structure, and relationships conveyed through presentation can be programmatically determined or are available in text. | Guideline Met |
| Meaningful Sequence (Level A) | 1.3.2 | When the sequence in which content is presented affects its meaning, a correct reading sequence can be programmatically determined. | Guideline Met |
| Sensory Characteristics (Level A) | 1.3.3 | 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. | Guideline Met |
| Distinguishable | 1.4 | 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:
| Guideline Met |
| Resize text (Level AA) | 1.4.4 | Except 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:
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:
| Guideline Not Met |
| Low or No Background Audio (Level AAA) | 1.4.7 | 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: | 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) | 1.4.9 | Images 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 Accessible |
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| 2. |
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| 1 | Make all functionality available from a keyboard. | |
| Keyboard (Level A) | 2.1. |
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| 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. |
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| 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. |
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| 3 | All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes. | Guideline Met |
| Enough Time |
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| 2. |
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| 2 | Provide users enough time to read and use content. |
Timing Adjustable (Level A)
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