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Usability vs. Accessibility

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From: Kelly Lupo
Date: Mar 21, 2016 10:55AM

I did not want to hijack the tabindex thread, so I figured I'd start a new
one... It was mentioned at one point that there was more of a usability
issue than an accessibility one in one of the examples.

I need to explicitly define the two for an unrelated project, but I find
that I am having a hard time doing so without confusing myself (let alone
the person reading I imagine!). How do ya'll explain this difference to
someone who has little to no experience in web accessibility?

I had started with the analogy of:

- Being directed to a 404 - 'page not found' or having makes the content
inaccessible (thus also unusable),
- Whereas a page in a language you do not speak, and does not provide
pictures or a translation widget, renders the page unusable because you can
access the page - it is just harder to access the content (IE: you need a
translator of some kind).


...And then I got confused by reading other sources which seemed to say the
opposite. Affirmation or dissent and correction would be much appreciated!

Thank you in advance,
Kelly