NFDI4Objects Service Type
  • Data Services (DaS)
  • Software Application Services (SAS)
NFDI Service Category
  • Web Applications
Task Areas

Metadata as .ttl

Responsible persons: Florian Thiery (LEIZA), Fabian Fricke (DAI), Jakob Voß (VZG)

In NFDI4Objects, Wikibase instances, Triplestores with SPARQL endpoints as data storage and data access option for Linked Open Data (LOD) in the Resource Description Framework (RDF) and wiki structures based on these, such as Semantic Media Wikis, play a major role. Community-driven instances of the Wikimedia Foundation are, for example, Wikidata or wikibase.cloud (Wikibase) and Wikipedia (Semantic Media Wiki). Instances of software such as Fuseki, RDF4J or Neo4J are used and offered as graph databases by the infrastructure facilities (e.g. VZG). Wikibase instances are used, for example, for a “Provenance Gazetteer for Persons and Bodies” in Task Area 2 “Collecting” or as part of the “Knowledge management FAIRification tool for conservation and restoration processes” in Task Area 4 “Protecting”.

In order to make these Wikibase instances usable in the NFDI4Objects consortium, this service provides the technical and content infrastructure (server and modeling recommendations). The Community Cluster “Semantic Modeling & Linked Open Data” can help with questions regarding content. Triplestores are intended to make Linked Open Data accessible in line with the FAIR principles and queryable via the SPARQL endpoint. Many of these LOD are available in repositories such as Zenodo[1][2], but are not stored in a triplestore and cannot be queried. This service provides a technical infrastructure to graph databases such as triplestores in order to make this data available “on-the-fly” as a basis for the NFDI4Objects Knowledge Graph. Continuous text can also be semantically enriched and made available in a FAIRer way. Here too, the Wikimedia Foundation offers open source software, the Semantic Media Wiki. This technology plays a role in the management of NFDI4Objects in Task Area 7, but also in Task Area 4 in the “Knowledge management FAIRification tool”. This service provides the technical infrastructure for this.

This service is supported by LEIZA, DAI and VZG in terms of technology and content. VZG provides the technical infrastructure, while LEIZA and DAI drive the content-related work.