From the DCMI page.
DCMI Registry Task Group: call for participation.
A DCMI Registry Task Group has been set up with the primary aims of developing shared functional requirements and inter-registry interoperability issues. This group is currently recruiting participants. Those with an interest in metadata schema registries, terminology registries, ontology registries and metadata vocabulary management are invited to visit the Task Group's Wiki for further information, news, upcoming events and opportunities to contribute.