Just a small note on an RDFa usage

Just for info: Talis and the University of Plymouth just published a
nice SW Case Study[1]. There is a small detail (compared to the rest of
the system) that caught my attention on a usage of RDFa that I find
interesting:

[[[
The interface to build or edit lists uses a WYSIWYG metaphor implemented
in Javascript operating over RDFa markup, allowing the user to drag and
drop resources and edit data quickly, without the need to round trip
back to the server on completion of each operation. The user’s actions
of moving, adding, grouping or editing resources directly manipulate the
RDFa model within the page. When the user has finished editing, they hit
a save button which serialises the RDFa model in the page into an
RDF/XML model which is submitted back to the server. The server then
performs a delta on the incoming model with that in the persistent
store. Any changes identified are applied to the store, and the next
view of the list will reflect the user’s updates.
]]]

(I put up a small blog on that[2])

:-)

Cheers

Ivan

[1] http://www.w3.org/2001/sw/sweo/public/UseCases/Talis/
[2] http://ivan-herman.name/2009/01/14/a-different-usage-of-rdfa/
-- 

Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
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