- From: Manu Sporny <msporny@digitalbazaar.com>
- Date: Thu, 19 Mar 2009 01:48:51 -0400
- To: RDFa <public-rdf-in-xhtml-tf@w3.org>
- CC: "public-rdfa@w3.org" <public-rdfa@w3.org>
Peter Mika wrote: > I thought I would just address one specific point: > >> Yahoo defines both this: >> >> media:Image, media:Audio, media:Video >> >> and this: >> >> media:medium - The type of object: image | audio | video | document | >> executable. >> >> What's the point of having both a 'medium' property and classes that >> define the medium? media:medium shouldn't exist at all - use one or the >> other, not both. Using both is confusing and will inevitably lead to >> more pain for Yahoo down the line when you have to look at not only >> @typeof information, but also medium information. > > We need this to simplify the life of publishers who want a single line > to indicate that there is a video attached to the page: > > <link rel="media:video" href="..."> That's a good goal to have, but think about the triple that you're creating: <mypage.html> <ymedia:medium> <puppies.swf> . That doesn't provide a single line to indicate that there is a video attached to the page. Although, something like this would: <mypage.html> <ymedia:containsVideo> <puppies.swf> . > From a site owner point of view this is significantly clearer than > adding a typeof and thus is much more likely to gain adoption. I'd argue that it would hurt adoption of Yahoo's vocabulary because it isn't clear how one should use ymedia:medium. I thought this is what the common usage scenario would be for ymedia:medium - A small <span property="ymedia:medium">video</span> about puppies. Is that incorrect? > In summary, I consider this a design pattern, not a bug, even if it > sacrifices a principle. If it is a design pattern, I don't think it is a very good one because it is vague and there are better design patterns out there that accomplish what you want to accomplish, such as the one I described above. -- manu -- Manu Sporny President/CEO - Digital Bazaar, Inc. blog: Absorbing Costs Considered Harmful http://blog.digitalbazaar.com/2009/02/27/absorbing-costs-harmful
Received on Thursday, 19 March 2009 05:49:30 UTC