- From: Dan Brickley <danbri@danbri.org>
- Date: Wed, 21 Apr 2010 21:33:04 +0200
- To: public-rdfa <public-rdfa@w3.org>
- Cc: David Recordon <recordond@gmail.com>
So this just got a high-profile launch at Facebook's F8 conference a couple hours ago - http://opengraphprotocol.org/ http://developers.facebook.com/docs/opengraph They're using RDFa, putting structured data into Web sites to sit alongside a Facebook "Likes" button, so that the topic of the page (movie, restaurant, book, whatever...) can be understood by apps downstream dealing with the social data. The RDFa is pretty basic, and I warned David that there's a good chance they'll be jumped upon by 100s of well-meaning semweb advocates arguing that they should be using more existing vocabs, different syntax structures, etc etc. I'd urge you all to go gently on that front for now, and focus instead more on how we can improve RDFa tooling and specs than on lobbying for improvements. >From what I've seen RDFa's graph data model is a good fit for what they're trying to express (i.e. things and properties), the use of RDFa in the HTML header makes sense given the desire for fairly regular data that doesn't get trashed with every site redesign, and the current use of <meta> isn't quite ideal since properties have an indirect meaning along the lines of "the director (of the film this page is about)", "the cuisine (of the bar this page is about)" etc. but I think is a fine start. This modelling might be quirky but it's their choice, and perhaps a step towards something more expressively graphy. We'll see. Looking to the future I hope we can see some of the deployment pragmatics from this work feed into the RDFa 1.1 design... cheers, Dan
Received on Wednesday, 21 April 2010 19:33:42 UTC