Wednesday, April 24, 2002

Dublin Core & Open Archives Initiative

This just came in. It is good to see the convergence of various streams of work into a river of useful tools.

DCMI and OAI are pleased to announce an XML schema for unqualified DC metadata that facilitates the declaration of modular metadata components.

The Dublin Core Metadata Initiative and the Open Archives Initiative have been cooperating on metadata issues for some time. Unqualified DC metadata is the default metadata set used in the OAI Protocol for Metadata Harvesting, intended to promote cross-domain interoperability. Other, domain-specific sets are encouraged as well, as envisaged in the modular metadata framework that both communities have been striving for.

This schema has been developed for use with the OAI Protocol, and has been discussed at length in the DC-Architecture working group. It is expected that the schema will be of use for other applications as well, and will be hosted on the DCMI Website and maintained by representatives of both groups.


This development is an important landmark in the development of web-based metadata services, reflecting as it does the convergence of community consensus and the development of enabling infrastructure to support that consensus.

The schema is available at: http://dublincore.org/schemas/xmls/simpledc20020312.xsd

This and other schemas will be linked and described for readers at http://dublincore.org/schemas/

More information on the Open Archives Initiative is available at: http://www.openarchives.org


Stuart Weibel
Executive Director
Dublin Core Metadata Initiative
OCLC Office of Research

Herbert Van de Sompel
Open Archives Initiative Executive
Digital Library Research & Prototyping
Los Alamos National Laboratory - Research Library