Steve, hello.
On 3 Dec 2021, at 18:54, Steve Green wrote:
> Sorry, Norman, but you cannot claim full WCAG 2 AA conformance based on that tool. You can claim EPUB conformance, but that is nowhere near the same thing. Tools can only test a small fraction of the WCAG success criteria, and you can only claim conformance if you have done a full manual test. That is never going to change.
Thanks for this -- that makes a lot of sense, and I thought it couldn't be that easy! It's entirely reasonable that the question here is a matter of judgement rather than box ticking.
And true enough, when I look at the DAISY page again, I see they don't describe the tool as a 'validator', but instead carefully say that ‘It has been developed to **assist in the evaluation** of conformance to the EPUB Accessibility Specification’ (my emphasis).
> Also, they are relatively easy to cater for because it is not too difficult to imagine what it is like to be blind or have low vision - in fact there are tools that simulate many of the conditions.
I think this is a key thing, which I hadn't thought through before. Even low vision, not promptly correctable by specs, is harder to get some intuition about, than being blind and using a screen reader.
> By contrast, the cognitive and motor impairment communities are far less coherent and don't have effective campaigning organisations, at least by comparison with the RNIB. Also, it is difficult for developers and content creators to imagine what it is like to be dyslexic, for example, so it is difficult to know how to create content dyslexic people will understand.
Very much so. I can attend a workshop, be told to write with my non-dominant hand, and feel (justly or not) 'OK, I get an idea of dyspraxia', but I have zero intuition about dyslexia. Without that intuition, I'm entirely dependent on do this, do that, instructions about how to make content better. And those instructions aren't always very clear, or obviously supported by sound experimental corroboration.
Best wishes,
Norman
--
Norman Gray : https://nxg.me.uk
SUPA School of Physics and Astronomy, University of Glasgow, UK
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