RDF (Resource Description Framework) is a data model in which knowledge is expressed in graphs and organized with labels. Several RDF standards are supported by the World Wide Web Consortium (W3C). It is expected that RDF applications will always be able to deal with the following W3C standards:

Preferred formats

• RDF/XML (.rdf)
• Trig (.trig)
• Turtle (.ttl)
• NTriples (.nt)
• JSON-LD