Hi Everyone, I would like to draw your attention to a small project recently conducted by the Science and Technology Facilities Council (STFC) and funded by the OMII UK. The project, entitled "Geospatial Transformation using OGSA-DAI" (GeoTOD-II), has developed a "Linked-Data" server that exposes spatial data residing in relational databases as linked data, fully complying with the guidelines provided by the UK Cabinet Office (http://location.defra.gov.uk/wp-content/uploads/2010/04/Designing_URI_Sets_for_Location-Ver0.5.pdf).
Of relevance to the D2RQ community is that the GeoTOD server uses a modified version of the D2RQ model encapsulated in OGSA-DAI acitivities to serve up linked data from relational databases. OGSA-DAI is an open source web application (developed by the OMII UK) that allows data to be collected, transformed, combined and exposed in different formats. Of particular mention here is the modified version of D2RQ used for GeoTOD; it can be run in the following three different modes: * normal run (as per the original D2RQ implementation - default), * sqlOnly run (for generating the corresponding SQL statements for a SPARQL query) and * triplesOnly run (for generating RDF triples using pre-generated Database ResultSets for the corresponding SQL statements) These modifications of D2RQ were necessary to encapsulate an instance D2RQ model within OGSA-DAI activities to generate different representations of a dataset, e.g. RDF, HTML, GML, KML etc. GeoTOD and the modified version of D2RQ are available on SourceForge at: https://sourceforge.net/projects/geotod/ (For D2RQ source, look under the "Files" tab) Thanks for your time. Happy holidays. Best regards Arif ---------------------------------------------------------------------- Dr. Arif Shaon Software Research Scientist, Scientific Applications Group, E-Science Centre, Science and Technology Facilities Council, Rutherford Appleton Laboratory Chilton, Didcot, OXON, OX11 0QX, UK tel: +44 1235 448178 [email protected]<mailto:[email protected]> -- Scanned by iCritical. ------------------------------------------------------------------------------ Learn how Oracle Real Application Clusters (RAC) One Node allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ d2rq-map-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/d2rq-map-devel
