RDF and related technologies are heavily used in healthcare and scientific fields, as well as industry. The "semantic web" or "open linked data" concepts never

RDF and related technologies are heavily used in healthcare and scientific fields, as well as industry. The "semantic web" or "open linked data" concepts never really took off the way people had hoped, but there's till a ton of utility in the underlying standards so you'll tend to find it wherever you need complex, flexible schemas that with good interoperability between different entities.