- From: <DPawson@rnib.org.uk>
- Date: Wed, 2 Jan 2002 09:42:38 -0000
- To: sean@mysterylights.com, wai-tech-comments@w3.org
Sean wrote: > * Listing vs. grouping vs. sectioning vs. paragraphing vs. theming > Inline lists have been raised in many fora. This is a step in the > right direction; as Al said (something like): "elements are for what > they do, not where they go". I'd like to add that they're also not for > what they look like, or how they render in any modality. The bottom > line, as TimBL put it, is to "say what you mean, rather than what you > want done with it". Sighted readers infer semantics from visual presentation. a,b,c and d infer a choice class of information. Breaks in text (para class of presentation)infer some level of change in subject matter. That's historically true, but still relevant. > * Annotations, linking sections together > > Following on from general "metadata", the GL group have often > expressed needs for:- > > *** Associating images with text, and stating a precise > relationship > *** Providing annotations of content for semantic pragmatics, etc. > *** Being able to provide labels for form mechanisms etc. > > This is generally termed as "annotation". RDF provides an excellent > way to make annotations, but it means canonicalizing that link to the > metadata. It means making it as standard as rel="stylesheet" is now; > which is probably a good thing. > > Annotation can also help when adding metadata about the varieties of > content of different modalities, That worries me. the link, rel="stylesheet" is reputedly something James Clark threw together to fill a gap. I still like the structural association <mediaObject> <media1form linkToIt="url"/> <media2form linkToIt="url"/> <media3form> <inLineContent>....</ </media3Form> </mediaObject> > > * Content of different modalities > > cf. http://lists.w3.org/Archives/Public/w3c-wai-gl/2001JulSep/1000 > - The Alt/Object Problem > > MIME types are getting to be more and more redundant (in that they > should be replaced with URIs) as time goes on, and genericity of > documents is an important factor. Consider fragment identifiers on a > document that is an audio run. The media type might be MP3, RAM, or > even an HTML transcript. The reference to "one minute into the audio" > should be the same across content types. Nice one. xpointer for smil? Are you looking for common syntax here Sean? > * Classes, IDs, extensions. Extra semantics: action item, poem > > If someone wants (traditionally) to ascribe extra semantics to a set > of elements, they have to use the "class" attribute. There is a > problem with that in that there is no way to define what this new > class means. It would be possible to come up with an RDF Schema that > people could follow to define what the new classes mean. It would then > be possible to retrieve this definition, using the afforementioned > metadata linking mechanism. This smacks of changing the problem domain. If an application goes digging around a website, it might come up with one or many words to replace the contents of the class attribute with other words. The problem then is interpreting those words. surely the real problem is semantic interpretation of the contents of the class attribute. Regards Dave ********* snip here ************** - NOTICE: The information contained in this email and any attachments is confidential and may be legally privileged. If you are not the intended recipient you are hereby notified that you must not use, disclose, distribute, copy, print or rely on this email's content. If you are not the intended recipient, please notify the sender immediately and then delete the email and any attachments from your system. RNIB has made strenuous efforts to ensure that emails and any attachments generated by its staff are free from viruses. However, it cannot accept any responsibility for any viruses which are transmitted. We therefore recommend you scan all attachments. Please note that the statements and views expressed in this email and any attachments are those of the author and do not necessarily represent those of RNIB. RNIB Registered Charity Number: 226227 Website: http://www.rnib.org.uk
Received on Wednesday, 2 January 2002 04:41:05 UTC