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Re: Mouse-only interactive line chart + same data in table format = sufficient?


From: Srinivasu Chakravarthula
Date: Nov 20, 2017 10:16PM

I would say making it keyboard operable will be great. This way we don't
need to worry about if the alternate table is updated or not. By making it
operable using keyboard would also serve users with vision impairment.

Answer for your bonus question would be that tabbing should be enough.


Srinivasu Chakravarthula - Twitter: http://twitter.com/CSrinivasu/
Website: http://www.srinivasu.org | http://serveominclusion.com

Let's create an inclusive web!

Lead Accessibility Consultant, Informatica

On Tue, Nov 21, 2017 at 2:49 AM, < <EMAIL REMOVED> > wrote:

> Hi All,
> We’re aiming for AA and we’ve produced a page which is a calculator, the
> user enters an amount and results are then displayed as a line chart, with
> two lines, showing different amounts projected over time. The point of the
> chart is to be able to compare the two lines.
> (In case it’s helpful the chart is built and coded using the HighCharts
> library.)
> I’ve advised that data points for the chart should also be available in
> HTML table format, for blind users, via a link. This is not controversial.
> What is in question is that, since there is a kind of sliding animation
> effect and visual users can interact with the chart by mousing over
> different dot points along the lines, revealing via overlay the numbers
> beneath their pointer (e.g. “5 Years, $123,456”), and since these numbers
> are not otherwise visible, I’ve advised that we must also accommodate
> keyboard only users, that they should be able to move focus within the
> chart using keyboard only.
> Question: Is providing the data points in table format sufficient for
> visual but keyboard only users, or must the convenience of the mouseover
> exploration be available for keyboard only users as well?
> Bonus follow up question if answer is yes: Would slider keyboard
> interactions be needed here or would tabbing be sufficient?
> Thank you!
> Rob C
> > > > >