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RDFa and Government Data
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RDFa and Government Data

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RDFa is a way to embed metadata in ordinary web-pages. It's useful in many situations, and this presentation looks particularly at how RDFa can help governments pursuing open data policies.

RDFa is a way to embed metadata in ordinary web-pages. It's useful in many situations, and this presentation looks particularly at how RDFa can help governments pursuing open data policies.

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  • 1. RDFa and government data Mark Birbeck Backplane Ltd. and W3C Invited Expert
  • 2. What is RDFa?
  • 3. Embed data in HTML and XHTML
  • 4. Why embed data? • Removes ambiguity about the content within a page. • Makes publishing data as easy as publishing HTML.
  • 5. Precise information Embedding metadata removes the ambiguity about the content of our pages
  • 6. Title: Chanda’s Secrets by Allan Stratton Stars: ***** I reviewed Stratton's newest teen novel, Leslie's Journal in October. I'd heard about Chanda's Secrets and wanted to give it a try. ...
  • 7. <div xmlns:v="http://rdf.data-vocabulary.org/#" typeof="v:Review" > <span rel="v:itemreviewed"> <span> Title: <span property="v:name">Chanda’s Secrets</span> </span> </span> Stars: <span property="v:rating" content="5">*****</span> <span property="v:summary"> I reviewed Stratton's newest teen novel, Leslie's Journal in October. I'd heard about Chanda's Secrets and wanted to give it a try. ... </span> </div>
  • 8. Number of stars, price range, etc., all picked up from the web-page via RDFa and
  • 9. Publishing HTML was never easier
  • 10. Embed data to make publishing data as easy as publishing HTML
  • 11. Case study: Vacancies and consultations Distributing data in UK government web-sites
  • 12. Static page ASP.NET Who knows?
  • 13. Momentum for governments to make data 'open'
  • 14. Linked Data Joining the linked data cloud
  • 15. <div typeof="v:Review" > <span rel="v:itemreviewed"> <span about="urn:ISBN:1550378341" typeof="bib:book"> Title: <span property="v:name">Chanda’s Secrets</span> </span> </span> Stars: <span property="v:rating" content="5">*****</span> <span property="v:summary"> I reviewed Stratton's newest teen novel, Leslie's Journal in October. I'd heard about Chanda's Secrets and wanted to give it a try. ... </span> </div>
  • 16. Mark Birbeck’s Twitter account name is <span typeof="foaf:OnlineAccount" rel="foaf:accountServiceHomePage" resource="http://twitter.com" property="foaf:accountName" >markbirbeck</span> and Ben Adida’s is <span typeof="foaf:OnlineAccount" rel="foaf:accountServiceHomePage" resource="http://twitter.com" property="foaf:accountName" >benadida</span>
  • 17. The future: Open access to the data Anyone can make up their own data sets
  • 18. RDFa • Removes ambiguity about page data • Makes it easy for anyone to publish data • Powerful enough to enable the publishing of Linked Data • Ideal for publishing government data
  • 19. W3C Standards • RDFa is a standard, building on other standards, such as RDF • With SPARQL, have a solid foundation for publishing government data
  • 20. • http://webBackplane.com/rdfa • http://webBackplane.com/mark-birbeck • http://rdfa.info • http://linkeddata.org