3 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?
- 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).