This repository deals with controlled vocablaries for DCAT-AP.de.
The dcat-ap.de definition site http://dcat-ap.de/def holds some controlled vocabularies. These vocabularies are described as OWL-files. OWL-Files are well suited to define ontologies aka sematic web class definitions.
In computer science and information science, an ontology is a formal naming and definition of the types, properties, and interrelationships of the entities that really exist in a particular domain of discourse. https://en.wikipedia.org/wiki/Ontology_(information_science)
We thinkt that SKOS is the correct way to describe controlled vacabularies, also the EU does. All EU vocabularies are described as SKOS.