RDFa In A Nutshell V2

fabien, gandon, inria

RDFain a nutshell

many databuried and dormant in web pages

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deep

web

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in particular data in the

embedding explicitseveral initiatives to make data

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for specific, common, concise data

for custom data, RDF data, multiple schemas

your dataRDFa = a domain-independent way to explicitly

embed

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RDF dataRDFa = a domain-independent way to explicitly

embed

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RDFa stands for…

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RDF… in HTML … attributes

RDFa in attributes of a web page to…

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… transfer data from an application

to another through the web.

… write data only once for web

users and web applications.

weaving RDFain web pages

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RDFa step 1declare the schemas you are using

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RDFa step 2use attributes to mark, type and add data

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RDFa step 3let RDFa agents extract RDF from the document

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web pagetake this minimal

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web pagedon't look at the code of this<html xmlns="http://www.w3.org/1999/xhtml"

xmlns:cal="http://www.w3.org/2002/12/cal/icaltzd#"

xmlns:xs="http://www.w3.org/2001/XMLSchema#" >

<body>



Weekend off in Iona:

2006-10-21

 to

2006-10-23

.

see <a rel="cal:url" href="http://freetime.example.org/">

Free time web site</a> for info on

Iona, UK.



</body>

</html>

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web pageschemas for data in this<html xmlns="http://www.w3.org/1999/xhtml"



<body>




 to


.






</body>

</html>

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web pagedata seen by users viewing this<html xmlns="http://www.w3.org/1999/xhtml"



<body>




 to


.






</body>

</html>

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web pagedata for an RDFa agent in this<html xmlns="http://www.w3.org/1999/xhtml"



<body>




 to


.






</body>

</html>

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web pagedata shared by both in this<html xmlns="http://www.w3.org/1999/xhtml"



<body>




 to


.






</body>

</html>

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web pagewhat an RDFa agent knows

from this

#event1 isA cal:Vevent

#event1 cal:summary "Weekend off in Iona"

#event1 cal:dtstart "2006-10-21"^^xs:date

#event1 cal:dtend "2006-10-23"^^ xs:date

#event1 cal:url <http://freetime.example.org/>

#event1 cal:location "Iona, UK"

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messagetake away

don't buryyour data in some HTML page

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data…when you publish a page that contains

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explicitdo make the embedding

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fabien, gandon

RDFa In A Nutshell V2

Technology

rdf data

web users

web pages10

web pages2

web applications

custom data

concise data

particular data