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RE: Graphs and Alt Text

From: Daman Wandke <daman@damanw.com>
Date: Fri, 16 Nov 2012 13:05:04 -0800
Message-ID: <7aad78fd043c95cf5d254d29ae1dad7e@mail.gmail.com>
To: w3c-wai-ig@w3.org
Thanks for the quick responses.  I have one more sticky issue.   On some of
the graphs, we are not allowed to publish the raw data.  What should I do in
those situations?

-----Original Message-----
From: Patrick H. Lauke [mailto:redux@splintered.co.uk]
Sent: Friday, November 16, 2012 12:58 PM
To: w3c-wai-ig@w3.org
Subject: Re: Graphs and Alt Text

On 16/11/2012 20:47, Daman Wandke wrote:
> I am trying to figure out the best way to write alt text for line
> graphs.  I am wondering what techniques others have used.  Graphs are
> used to represent data quickly, but they also contain a lot of data.
> How do I balance the amount of information?  I also have to find a
> technique that content editors can implement easily.  The only
> technique I can think of is to include an accessible data table with the
> data.
> Looking forward to any input or suggestions.

The traditional answer would indeed be to at least include the raw data in a
correctly (with the right headers etc) marked up table. It would also be
useful (for all users, including those that can see the graph
itself) if there was a summary of what the graph was trying to illustrate,
I'd say. A la "With the exception of Q1 2012, sales in the past year have
been on a steady rise, closing at a total of $5bn, more than double the
previous year's closing figure of $2.3bn" ... or something.

Patrick H. Lauke
re·dux (adj.): brought back; returned. used postpositively [latin : re-, re-
+ dux, leader; see duke.]

www.splintered.co.uk | www.photographia.co.uk http://redux.deviantart.com |
twitter: @patrick_h_lauke | skype: patrick_h_lauke
Received on Friday, 16 November 2012 21:05:28 UTC

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