SFScon21 - Sander Van Dooren - Joinup: Maintaining an Open catalogue of reusable solutions with Linked Data
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Joinup is a collaborative platform by the European Commission aimed at digital governance, providing a catalogue of reusable solutions for public administrations, businesses, and citizens. It utilizes a Drupal-based website that supports linked data and RDF standards, facilitating the exchange and representation of data as semantic triples. The platform integrates various ICT solutions, open-source software, and metadata frameworks, enhancing interoperability across catalogues.
SFScon21 - Sander Van Dooren - Joinup: Maintaining an Open catalogue of reusable solutions with Linked Data
- 1. Maintaining an Open catalogue of reusable solutions with Linked Data SFScon 2021 Friday, 12th of November 2021 European Commission Directorate General for Informatics DIGIT D2 (Interoperability Unit) Speaker Sander Van Dooren Systems Architect
- 2. What is Joinup? Collaborative platform 📌 Digital Government professionals 📌 Public administrations 📌 Businesses & academia 📌 Citizens Observatory Digital Gov News & events 📌 Studies, factsheets etc. 📌 IOP1 & OSS2 policies 📌 ICT Solutions Repository 📌 Open Source software 📌 ICT specifications 📌 Frameworks & data models 1 IOP = Interoperability 2 OSS = Open Source Software
- 3. • Website, based on Drupal CMS (OSS) • ISA2 – European Commission • Open Source - https://github.com/ec-europa/joinup-dev • Build on OSS stack Today’s focus -> Catalogue of reusable solutions <> Drupal Joinup
- 4. • Represent data as triples (subject – predicate – object) • RDF standard by W3C (semantic web) • Multiple serializations supported (JSON, XML, N3, Turtle, …) • Triplestore is a Linked Data graph database • Query language SPARQL (W3C) More: https://www.sfscon.it/talks/open-data-de-luxe-querying-public-sparql- endpoints-from-the-command-line-r-and-pandas/ Linked Data
- 5. • Drupal 8 website since 2017, before Drupal 6 • EC has a big Drupal team default option for websites is Drupal • Joinup is part of a federation of catalogues • Catalogues use shared data model (ontology): ADMS-AP • Catalogues exchange metadata as linked data => Joinup needs Linked Data support Short historical context
- 6. • SPARQL database driver for Drupal • Map ontology to Drupal entities • Abstraction! • No data conversions • Mapping of SKOS to Drupal taxonomies • Harvesting pipeline • Batch ingestion (validation – loading) Linked Data support in a CMS?
- 7. • Not all content in RDF • E.g. versioning was difficult • Two db backends: how to query? • Apache Solr • Triplstore almost no load • SPARQL endpoint • Replica of some graphs Linked Data support in a CMS?
- 8. Demo
- 9. Thank you! © European Union 2021 Unless otherwise noted the reuse of this presentation is authorised under the CC BY 4.0 license. For any use or reproduction of elements that are not owned by the EU, permission may need to be sought directly from the respective right holders. Let’s stay connected joinup.ec.europa.eu @Joinup_eu Joinup Community Contact us