- From: Andrew Arch <andrew@w3.org>
- Date: Fri, 23 Jul 2010 12:45:12 +0100
- To: Shawn Henry <shawn@w3.org>
- CC: "EOWG (E-mail)" <w3c-wai-eo@w3.org>
Hi Shawn, I think this is pretty good, but reading the various other responses from EO made me think of another case related to cognition. People who can read but have difficulty processing/understanding maps, diagrams, charts, graphs, etc, need a text alternative to understand the information presented in the image (not an 'alt' attribute, but a true alternative description). Cheers, Andrew Shawn Henry wrote: > Dear EOWG, > > I've just typed up our comments from a recent teleconference > discussion[1] of "HTML5: Techniques for providing useful text > alternatives, Working Draft 24 June 2010"[2]. I looked at one point more > carefully and have ideas *for your review and comment*. > > Currently under "Examples of scenarios where users benefit from text > alternatives for images" at > http://www.w3.org/TR/2010/WD-html-alt-techniques-20100624/#example-benefits > is listed: > - They have a very slow connection. - They have a vision impairment and > use text to speech software. - They have a cognitive impairment and use > text to speech software. - They are using a text-only browser. - They > are listening to the page being read out by a voice Web browser. > > We had already commented that this needs more explanation for people who > are not aware, for example, of screen reader use. Below is an additional > draft suggestion for an edit of that list and its intro. > > " > Examples of when people need text alternatives for images: > - Users who are blind or have a visual impairment and use a screen > reader that reads aloud the information from the web page (text to > speech software). [link to section in new How People with Disabilities > Use the Web once its done.] > - Users who are blind and use a dynamic braille display to get > information from the web page. - Users who have a cognitive impairment > that makes is difficult or impossible to read, and use a screen reader. > - Users who have a slow connection and turn off images to speed download. > - Users who turn off images to decrease bandwidth use in order to lower > their Internet usage fees. > - Users with a text-only browser. - Users listening to the page being > read out by a voice browser, for example, as they drive or otherwise > cannot read the web page. > > There are many benefits for web site developers and owners to include > text alternatives for images as well; for example, it improves search > engine optimization (SEO) because the text alternatives are available to > search engines, whereas images themselves basically are not. > > [could link <a href="http://www.w3.org/WAI/bcase/fin.html#seo">improves > search engine optimization (SEO)</a>] > " > > Please reply with comments on the above draft idea. > > Thanks, > ~Shawn > > > > [1] Minutes from the EOWG teleconference are at > http://www.w3.org/2010/07/02-eo-minutes#item01 > Please keep in mind that these are rough minutes and may not reflect > what was actually said. > > [2] http://www.w3.org/TR/2010/WD-html-alt-techniques-20100624/ > > > > > ----- > Shawn Lawton Henry > W3C Web Accessibility Initiative (WAI) > e-mail: shawn@w3.org > phone: +1.617.395.7664 > about: http://www.w3.org/People/Shawn/ > > > >
Received on Friday, 23 July 2010 11:45:42 UTC