Using a Metadata Schema Registry in the National Digital Data Archive of Hungary

The National Digital Data Archive (NDDA) is an ongoing initiative of the Hungarian government that makes Hungary’s national cultural assets available in digital form. The NDDA features a decentralized OAI-based network of archives and service providers facilitating discovery and access to digitized objects. Authors’ participation in the project is described including the implementation of an NDDA service provider. This service provider is connected with an RDF-based metadata schema registry enabling the service to automatically adapt to the metadata schemas defined within the NDDA.