We have just released jMet2Ont: http://fbc.pionier.net.pl/pro/jmet2ont/
jMet2Ont is a tool that transforms XML-based metadata, either flat (like Dublin Core) or hierarchical (like MARC/XML), into ontology-governed RDF triples (in CIDOC CRM, EDM, or any other ontology expressed in OWL).
You do not have to do any programming to use the mapper. What you have to do is prepare a mapping rules XML file – the syntax of this file is expressed in detail in the user documentation section of the project’s website.
For now the mapper is run as a command-line tool, but future development direction may include adding a graphical user interface. In case of any questions, do not hesitate to contact the responsible developers.