A good tutorial on RDF graphs can be found here: http://www.linkeddatatools.com/semantic-web-basics. One can see the same kind of entity, attribute and relationship structure as in FRBR, but here is is all structured by relationships in the form of statements (or triples), and arranged in graphs (which are a series of statements about how things relate to each other). What is new with RDF graph databases is their non-hierarchical nature.
Thomas Brenndorfer Guelph Public Library
