metadata-ingestion/docs/sources/rdf/README.md
This connector ingests RDF (Resource Description Framework) ontologies into DataHub, with a focus on business glossaries. It extracts glossary terms, term hierarchies, and relationships from RDF files using standard vocabularies like SKOS, OWL, and RDFS.
The RDF ingestion source processes RDF/OWL ontologies in various formats (Turtle, RDF/XML, JSON-LD, N3, N-Triples) and converts them to DataHub entities. It supports loading RDF from files, folders, URLs, and comma-separated file lists.
This ingestion source maps the following Source System Concepts to DataHub Concepts:
| Source Concept | DataHub Concept | Notes |
|---|---|---|
"rdf" | Data Platform | |
skos:Concept | GlossaryTerm | SKOS concepts become glossary terms |
owl:Class | GlossaryTerm | OWL classes become glossary terms |
| IRI path hierarchy | GlossaryNode | Path segments create glossary node hierarchy |
skos:broader / skos:narrower | isRelatedTerms relationship | Term relationships |