- From: Jason White <jasonw@ariel.ucs.unimelb.edu.au>
- Date: Mon, 17 Jul 2000 11:55:29 +1000 (EST)
- To: Web Content Accessibility Guidelines <w3c-wai-gl@w3.org>
Principle 1 is supposed to catch the case to which Al referred, in which there are no higher-level semantic representations available from which presentations in different sensory modalities can be derived and "equivalents" are therefore needed. Perhaps we could reformulate the principle as follows: "Ensure that content can be rendered in any of the three sensory modalities (visual, auditory or tactile)." This is essentially what Gregg suggested at the meeting. The difficult aspect is that it applies not just to the whole of the content, but to parts of it (for instance, if the auditory component of a multimedia presentation is unavailable, one should provide captions instead of offering, as the only alternative, a transcript of the entire presentation, so that users can view the visual component while having synchronized access to the captions). However, these subtleties can be explained in the text and it may not, perhaps, be essential that they also be made clear in the words of the principle itself.
Received on Sunday, 16 July 2000 21:56:54 UTC