RDFa makes it easy for Web publishers to expose data on the Web, but RDFa can also make it easy to develop Web data applications. Watch how easy it is to replace complex data schemas and their SQL queries with simple RDFa attributes in your HTML markup!

In this webcast, James Leigh, a lead developer (with David Wood) on the Callimachus Project, will show us how a Web developer can create semantically-enabled Web applications with a minimal knowledge of the internals of the Semantic Web and SQL. For further details, see Callimachus Project at http://www.callimachusproject.org.

SUPPORTING MATERIAL

1. This webcast walks you through some of the sample applications with Callimachus. To find out more about these sample applications and to download them, visit:
   http://code.google.com/p/callimachus/wiki/SampleApplicationInstructions
2. Callimachus uses the Turtle syntax for its configuration files. The Turtle syntax is explained here:  http://www.w3.org/TeamSubmission/turtle/
3. RDFa is used in the template language of Callimachus. An introduction to RDFa (the data format) can be found here:
   http://www.w3.org/TR/xhtml-rdfa-primer/
4. During this webcast some browser extensions are used, they can be downloaded here:
   https://chrome.google.com/extensions/detail/mgekankhbggjkjpcbhacjgflbacnpljm?hl=en
   https://addons.mozilla.org/en-US/firefox/addon/187590/