WebAIM - Web Accessibility In Mind

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Re: Usability vs. Accessibility

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From: James A.
Date: Mar 22, 2016 12:43PM

I consider usability as a sub-set of accessibility as well as the other way around. It is perfectly possible to have materials that are technically accessible but unusable to all but a highly experienced assistive technology user. For example, when a large number of new shortcut keys have to utilised to access functionality; the limited up-take of ARIA controls by users. Similarly many disabled users are not using assistive technology but cognitive demands of complex interfaces and content can make sites in accessible.

Regards

Abi James
University of Southampton