13 guidance statements support this object characteristic:
- Assistive technology-compatible - For systems with user interfaces, people may need content and operable elements to be accessed and presented through assistive technology.
- Avoid cognitive overloads - For system the presents content and other stimuli, people may need to avoid cognitive overloads?
- Avoid overwhelming visuals - For systems with visual content, people may need to avoid visual events that may overload their perception.
- Background noise - For systems that present content, people may need to be able to distinguish information in the foreground from background noise (noise which may be of any modality).
- Change to cultural conventions, words, and symbols - For systems that present text and images, people may need to change input and user interface components to use text or symbols with which they familiar.
- Consistent visual design - For systems with visual content, people may need content that uses consistent and familiar visual conventions.
- Familiar icons - For systems with icons, people may need familiar icons or symbols that help them understand meaning.
- No visual seizure triggers - For systems with visual content, people may need to be able to avoid visual patterns that cause seizures or adjust the viewing of such visual patterns so that they are safe.
- Turn off visual output - For systems with visual content, people may need to turn off the visual output from a system.
- Unexpected movement - For systems with a visual interface, people may need content and controls to remain in the same relative location and not move unexpectedly.
- Use cultural conventions, words, and symbols - For systems that present text and images, people may need content and interfaces that use standard conventions, words, and symbols for the culture, with which they are familiar.
- Visual recall - For systems with visual content, people may need time to study visual stimuli that they must later recall, so they can store the relevant information non-visually.
- Visual recognition - For systems with visual content, people may need visual cues that they must recognize, such as icons and logos, to include other ways to distinguish them, such as labels.