A Metadata Registry from Vocabularies UP: The NSDL Registry Project
  The NSDL Metadata Registry is designed to provide humans and machines with the means to discover, create, access and manage metadata schemes, schemas, application profiles, crosswalks and concept mappings. This paper describes the general goals and architecture of the NSDL Metadata Registry as well as issues encountered during the first year of the project's implementation. 
Diane I. Hillmann (1), Stuart A. Sutton (2), Jon Phipps (1), Ryan   Laundry (2) ((1) Cornell University, (2) University of W...