What is SDMX-RDF?

Copyright 2009 Digital Enterprise Research Institute. All rights reserved.

Digital Enterprise Research Institute www.deri.ie

What is SDMX-RDF? Richard Cyganiak (@cygri), DERI, NUI Galway

ODaF meeting, Tilburg, 7 July 2010


A proposed standard for publishing statistical data and metadata

according to the Linked Data principles, based on SDMX


Agenda

1.  Statistical linked data with SCOVO

2.  SDMX-RDF goals and overview 3.  SDMX-RDF roadmap

4.  Questions to you


SCOVO Statistical Linked Data

with


SCOVO

http://sw.joanneum.at/scovo/schema.html


SCOVO Overview


SCOVO use

  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/


But …

1.  Publishing statistics as linked data is a recurring task

2.  SCOVO has severe limitations


SDMX-RDF Goals and Overview


Goals

  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


SDMX: Information model + syntaxes


SDMX: Information model + syntaxes


Scope

Data Set Y

Cross-Sectional Data Set (Y)

Data Structure Definition Y Codelist Y

Metadata Set Y?

Metadata Structure Def. Y?

Maintenance Agency Y

Dataflow Definition (Y)

Metadataflow Definition (Y)

Data Provider (Y)

Provision Agreement (Y)

Constraints –

Category Scheme Y Concept Scheme Y

Structure Set –

Reporting Taxonomy ?

Process –

Registry –

Content-Oriented Guidelines Y

Expressible SDMX concepts


Publishable artifacts in SDMX-RDF

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

  …


SDMX Content-Oriented Guidelines

Cross-Domain Concepts SKOS Property collection Cross-Domain Code Lists SKOS

Subject-Matter Domains SKOS

Metadata Common Vocabulary –

RDF representations of COGs

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


Linked Data in SDMX-RDF

  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


Roadmap


Disseminating an RDF vocabulary

  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%


Questions

to you


Questions

  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


Thank you! [email protected]

@cygri http://www.slideshare.net/cygri/what-is-sdmxrdf-4696043

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What is SDMX-RDF?