RE: How to check visualizations in iframes

For tableau, we’ve been mitigating the accessibility risk by providing contextual tables.  See https://www.cdc.gov/nchs/data-visualization/index.htm.


Note that the visualizations are in various stages of accessibility, as we learned from our mistakes and Tableau has made some improvements.

Regards,
Mark D. Urban
CDC/ATSDR Accessibility Program Manager
Office of the Chief Information Officer (OCIO)
Office of the Chief Operating Officer (OCOO)
Murban@CDC.gov<mailto:Murban@CDC.gov> | 919-541-0562 office
[Office of the Chief Information Officer]

From: Mehrnaz Ahmadi <mahmadij@gmail.com>
Sent: Thursday, October 15, 2020 8:43 PM
To: Steve Green <steve.green@testpartners.co.uk>
Cc: w3c WAI List <w3c-wai-ig@w3.org>
Subject: Re: How to check visualizations in iframes

Thank you very much for your replies. I will use the suggestions. I worked on web apps before, but never had to review charts for accessibility. That's why I'm so clueless.
I don't have decision making power to use or not to use Tableau. So, I need to do what I can with what I have.
In their conference this year, Tableau mentioned that they have started applying accessibility into their components and they presented a list of components that are accessible now. Do you think that this is wishful thinking or it is actually making the software accessible?
Thanks
Mehrnaz

On Thu, Oct 15, 2020 at 6:39 PM Steve Green <steve.green@testpartners.co.uk<mailto:steve.green@testpartners.co.uk>> wrote:
Don’t bother. Tableau is totally inaccessible and unfixable. I happened to be looking at some visualisations for a client last week and I was horrified by the coding.

With most iframes, you can usually right-click the URL in the DOM Inspector and select “Open in new tab”. Testing tools will then work. However, I have come across a very small number of iframes that don’t work outside the host website – you just have to try it and see.

Steve Green
Managing Director
Test Partners Ltd


From: Mehrnaz Ahmadi <mahmadij@gmail.com<mailto:mahmadij@gmail.com>>
Sent: 14 October 2020 15:15
To: w3c WAI List <w3c-wai-ig@w3.org<mailto:w3c-wai-ig@w3.org>>
Subject: How to check visualizations in iframes

Hello,

I just started a position as a BI Developer and part of my job is to check our tableau visualizations for accessibility. In the past, I used wave chrome extension, but wave doesn't seem to scan charts and visualizations since they are inside iframes. Would anyone know how I can check charts and visualizations for accessibility? Is there a tool for that? Any type of information is greatly appreciated.

Thank you very much.

Best,

Mehrnaz