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Linked Open Data for INSPIRE: From 3 to 5 star geospatial data

Linked Open Data for INSPIRE: From 3 to 5 star geospatial data. Francisco J. Lopez-Pellicer , Aneta J. Florczyk , Javier Nogueras- Iso , Pedro R. Muro-Medrano and F. Javier Zarazaga - Soria INSPIRE Conference 2011, Edinburg, July 1, 2011. 5 star Linked Data?.

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Linked Open Data for INSPIRE: From 3 to 5 star geospatial data

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  1. Linked Open Data for INSPIRE: From 3 to 5 stargeospatial data Francisco J. Lopez-Pellicer, Aneta J. Florczyk, Javier Nogueras-Iso, Pedro R. Muro-Medrano and F. Javier Zarazaga-Soria INSPIRE Conference 2011, Edinburg, July 1, 2011

  2. 5 starLinked Data? • Sir Tim Berners Lee (2010) • “Thisyear, in ordertoencouragepeople- especiallygovernment data owners - alongtheroadtogoodlinked data, I havedeveloppedthisstar rating system” • Details @ http://www.w3.org/DesignIssues/LinkedData.html • Purpose of thistalk • Introduce this rating system in ourcontext • We’ve come partway !!! • ExemplifiedwithdatasetsfromSpain • Presenttwo 5 starLinked Data sites in Spainrelatedto SDI nodes • Present a 5 starLinked Data recipefor INSPIRE data

  3. 1 Star • Makeyourstuffavailableonthe Web (whateverformat) underan open license. MTN50 catographicgrid Map of MTN50 catographicgrid Gazetteer Boundaries National Reference GeographicEquipment Public data, requiredattribution

  4. 2 Star • Makeitavailable as structured data (e.g., ESRI Shapefileinstead of imageportrayal of data). Map of MTN50 catographicgrid in png

  5. 3 Star • Use non-proprietaryformats (e.g., WKT instead of ESRI Shapefile, CSV instead of Access). MTN50 cartographicgridavailable in WKT and ESRI Shapefile Gazetteeravailableonly in Access format Boundariesavailableonly in ESRI Shapefileformat

  6. 4 Star (no way?) • Use URIstoidentifythings, so thatpeople can point at yourstuff (native use of RDF isnotrequired) MTN50 gridnotpublished as RDF GeoLinkedData.es initiativemakes availablethis data as RDF

  7. 5 Star • Link your data toother data toprovidecontext.

  8. 5 Star + Metadata • Forgovernement data, thereshould be metadataaboutthe data itself (e.g. provenance, rights).

  9. 5 Star + Metadata + Data registry • Forgovernement data, theirmetadatashould be availablefromanofficialregistry (e.g. catalogue).

  10. 5 Star + Metadata + Data registry + Infrastructure • Forgovernment data, thepreviousstepsrequire a coordinate series of agreementsontechnologystandards, institutionalarrangements, and policies.

  11. Summary

  12. 5 StarLinked Data examplesfromSpain- http://geo.linkeddata.es/- http://datos.zaragoza.es/

  13. Spanish NGI data @ http://geo.linkeddata.es/

  14. Spanish NGI data @ http://geo.linkeddata.es/

  15. Saragossa City Council data @ http://datos.zaragoza.es/

  16. Saragossa City Council data @ http://datos.zaragoza.es/

  17. Conclusions- Do’s and don’tsaboutLinked Data- 5 starrecipefor INSPIRE data

  18. Conclusions: do’s and don’tsaboutLinked Data • Do • Publish valuable data • Pick persistent URIs for naming things • Dereference URIs to representations’ URLs • Put metadata giving license and provenance • Use RDF formats for data transmission in addition • Use SPARQL for data and metadata access • Keep simple • Integrate with existing systems • Don’t • Publishallyour data • Publishoutdated data • Publishwithoutexplicitlicense • Hide data behindformsorapplications • Publish data only in propietaryformats • Waituntilyouhave a complete ontology • Seektoreplaceexistingsystems

  19. Conclusion: 5 starrecipefor INSPIRE data

  20. Francisco J. Lopez-Pellicer fjlopez@unizar.es http://iaaa.cps.unizar.es/ IAAA is currently a partner in the EuroGeoSource project http://www.eurogeosource.eu

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