- From: Dave Pawson <dave.pawson@virgin.net>
- Date: Wed, 11 Aug 1999 20:27:13 +0100
- To: <w3c-wai-ig@w3.org>
Not myself, I only read; but if I were to want to know, I'd look for someone who described diagrams for audio books. Its amazing what works. HTH DaveP > Most image on the web are decoration or icons with simple meanings like > "next page". so ALT text and long descriptions are relatively > straightforward. > > But some images convey information. For example, > > A simple linear sequence, like a flow chart with input going through a > series of processing stages to result in an output. > > A tree diagram, like a company's organization chart. > > A more general diagram showing a bunch of interconnected objects, e.g. a > schematic diagram or an electronic circuit. > > The most complex is a 3D machine, in motion if you want to make it even > harder. > > Are there any guidelines on how to describe these diagrams? > > For example, you could use lists and nested lists for linear sequences and > trees respectively. Or you could use prose. More general diagrams are, > well, a more general problem. What techniques are best for what purposes > and audiences? What's good wording, especially for prose decriptions? > > I'm mainly thinking of speech output here, since that's what most blind > surfers will be using, rather than Braille or tactile graphics. > > This is no doubt hard to encapsulate... at some point you just have to get > a skilled technical writer, especially for the prose versions... > > Len > ------- > Leonard R. Kasday, Ph.D. > Universal Design Engineer, Institute on Disabilities/UAP, and > Adjunct Professor, Electrical Engineering > Temple University > > Ritter Hall Annex, Room 423, Philadelphia, PA 19122 > kasday@acm.org > (215) 204-2247 (voice) > (800) 750-7428 (TTY) >
Received on Wednesday, 11 August 1999 15:31:09 UTC