- From: Dan Connolly <connolly@w3.org>
- Date: Fri, 18 Aug 2006 08:45:31 -0500
- To: Fabien Gandon <Fabien.Gandon@sophia.inria.fr>
- Cc: public-grddl-wg@w3.org
On Fri, 2006-08-18 at 15:18 +0200, Fabien Gandon wrote: > Use case #2 - A wiki for learning: The Technical University of Marcilly > decided to use wikis to foster knowledge exchanges between lecturers and > students. This is quite nice. Is it a real-world case-study or a hypothetical use case? It sounds quite real, but I can't find any Technical University of Marcilly in the web. Still, quite good; it sounded quite real. ;-) (Note that I edited the subject of this thread; "use case 8" is going to make no sense to somebody looking thru the archives months from now.) [...] > Therefore, from the technical stand point, TMU designed a wiki that > stores its pages directly in XHTML and RDF annotations are used to > represent the wiki structure and annotate the wikipages and the objects > it contains (images, uploaded files, etc.). The RDF structure allows > refactoring the wiki structure by editing the RDF annotations and the > RDFS schemas they are based on. That sentence about refactoring is a bit obscure; a "For example..." would perhaps help. > RDF annotations are embedded in the wiki > pages themselves using the RDFa and microformats. Some of the learning > objects can be saved in XML formats and an XSLT stylesheet exploits the > styles used for the session to tag the different parts (e.g. definition, > exercise, example) and these annotation can then be used to generate new > views on this resource (e.g. list of definition, hypertext support for > practical sessions, etc.). > The embedded RDF is extracted using a GRDDL XSLT stylesheets available > online to provide semantic annotations directly to the application that > needs to extract the embedded metadata: > - if someone sends a wiki page to someone else the annotations follow it > and can be processed by applications of the recipient; > - if another application crawls (e.g. the crawler of a search engine) > the wiki site it can extract the metadata and reuse them just by > applying the same GRDDL transformation; Those two bullets point out an interesting technical requirement that GRDDL meets. > - if a new community of practice of TMU (e.g. the accountants) wants a > dedicated index of its working document, it can be embedding the > corresponding SPARQL query in a wikipage: the search engine fed with the > GRDDL results solves this query and the result is rendered by an XSLT > stylesheet and embedded in the page; This write-up actually describes several use cases; that's one. > - if the wiki engine is to be changed, the migration transformations can > exploit the embedded metadata; That's another use case. (Not that we need to give it a separate section in the document or anything) I'm not sure that's clear enough on its own. Please either elaborate with another sentence or two... perhaps a "For example..." or maybe leave it out. > - if a division wants to setup access rules to some documents, they can > be based on these metadata merged with others (e.g. only lecturer can > access document tagged as "tests"). That's another interesting case. That one is quite clear. > - if some users are interested in being informed on any new information > on a topic (e.g. chemists want to be informed on any new norm for the > environment) they can use notification systems monitoring the wiki by > querying its metadata (e.g. recurrent SPARQL queries on pages tagged > with "environment") And that case is pretty clear too. > - etc. > -- Dan Connolly, W3C http://www.w3.org/People/Connolly/ D3C2 887B 0F92 6005 C541 0875 0F91 96DE 6E52 C29E
Received on Friday, 18 August 2006 13:45:41 UTC