What is SDMX-RDF?

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What is SDMX-RDF?

  1. 1. Digital Enterprise Research Institute www.deri.ie What is SDMX-RDF? Richard Cyganiak (@cygri), DERI, NUI Galway ODaF meeting, Tilburg, 7 July 2010  Copyright 2009 Digital Enterprise Research Institute. All rights reserved.
  2. 2. Digital Enterprise Research Institute www.deri.ie A proposed standard for publishing statistical data and metadata according to the Linked Data principles, based on SDMX
  3. 3. Agenda Digital Enterprise Research Institute www.deri.ie 1.  Statistical linked data with SCOVO 2.  SDMX-RDF goals and overview 3.  SDMX-RDF roadmap 4.  Questions to you
  4. 4. Digital Enterprise Research Institute www.deri.ie Statistical Linked Data with SCOVO
  5. 5. SCOVO Digital Enterprise Research Institute www.deri.ie http://sw.joanneum.at/scovo/schema.html
  6. 6. SCOVO Overview Digital Enterprise Research Institute www.deri.ie
  7. 7. SCOVO use Digital Enterprise Research Institute www.deri.ie   Riese (Eurostat)   http://riese.joanneum.at/   LOIUS (Italian university statistics)   http://sw.unime.it/loius/info.html   German Environment Speciman Bank   http://www.umweltprobenbank.de/en/documents   UK government data   http://www.jenitennison.com/blog/node/132   voiD, RDFstats   http://vocab.deri.ie/void/guide#sec_3_Expressing_dataset_statistic   http://rdfstats.sourceforge.net/
  8. 8. But … Digital Enterprise Research Institute www.deri.ie 1.  Publishing statistics as linked data is a recurring task 2.  SCOVO has severe limitations
  9. 9. Digital Enterprise Research Institute www.deri.ie SDMX-RDF Goals and Overview
  10. 10. Goals Digital Enterprise Research Institute www.deri.ie   Purpose   Dissemination of statistics over the Web as linked data   Top requirements   High-fidelity representation of statistical information   Linking with other information assets   Re-use of artifacts   Non-goals   Collection of statistics   Reporting of statistics   Validation of completeness, timeliness etc
  11. 11. SDMX: Information model + syntaxes Digital Enterprise Research Institute www.deri.ie
  12. 12. SDMX: Information model + syntaxes Digital Enterprise Research Institute www.deri.ie
  13. 13. Scope Digital Enterprise Research Institute www.deri.ie Expressible SDMX concepts Data Set Y Provision Agreement (Y) Cross-Sectional Data Set (Y) Constraints – Data Structure Definition Y Category Scheme Y Codelist Y Concept Scheme Y Metadata Set Y? Structure Set – Metadata Structure Def. Y? Reporting Taxonomy ? Maintenance Agency Y Process – Dataflow Definition (Y) Registry – Metadataflow Definition (Y) Content-Oriented Guidelines Y Data Provider (Y)
  14. 14. Publishable artifacts in SDMX-RDF Digital Enterprise Research Institute www.deri.ie A data set can draw upon artifacts published by any number of different parties   Data structure definitions   Code lists (URI sets, SKOS vocabularies)   Property collections   Concept lists   …
  15. 15. SDMX Content-Oriented Guidelines Digital Enterprise Research Institute www.deri.ie RDF representations of COGs Cross-Domain Concepts SKOS Property Cross-Domain Code Lists SKOS collection Subject-Matter Domains SKOS Metadata Common Vocabulary – Example URIs   http://purl.org/linked-data/sdmx/2009/concept#currency   http://purl.org/linked-data/sdmx/2009/code#freq-M   http://purl.org/linked-data/sdmx/2009/subject#2.4.5
  16. 16. Linked Data in SDMX-RDF Digital Enterprise Research Institute www.deri.ie   Use of existing URI sets and SKOS vocabularies as code lists   Make code lists available on the web for non-SDMX re-use (as SKOS vocabularies)   Concepts and properties shared between data sets   Everything has a URI and can be linked to
  17. 17. Digital Enterprise Research Institute www.deri.ie Roadmap
  18. 18. Disseminating an RDF vocabulary Digital Enterprise Research Institute www.deri.ie   Clear use case 100%   Solid design 90%   Specification 50%   Tutorials 50%   Reference deployments 25%   Converters from popular existing formats 10%   Reference data browser/visualiser 0%   Great website 0%   Big-name users 20%
  19. 19. Digital Enterprise Research Institute www.deri.ie Questions to you
  20. 20. Questions Digital Enterprise Research Institute www.deri.ie   Name?   Scope is smaller than SDMX-ML and SDMX-EDI   Interest from the SDMX user community?   So far, SDMX-RDF has been driven by linked data community   We need SDMX expertise and early adopters   Scope check   How does your organisation re-use concepts, code lists, and data structure definitions?   Do you have example SDMX data for us?   Reality check
  21. 21. Digital Enterprise Research Institute www.deri.ie Thank you! richard@cyganiak.de @cygri http://www.slideshare.net/cygri/what-is-sdmxrdf-4696043

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