This project will continue the development of an RDF vocabulary that can be used broadly in the library and cultural heritage environment. The initial BIBFRAME ontology (1.0) was stabilized for a year in 2014 by the Library of Congress to enable experimentation with the BIBFRAME model. In early 2016, the Library began to analyze comments that had come from the community over the past year, advice from a consultant who had been engaged to review the vocabulary, and experience from the Pilot carried out in 2015. As a result, proposals for changes to the vocabulary were developed and published on the BIBFRAME website for public review. This project includes development of the BIBFRAME 2.0 vocabulary based on those reviews; ontology namespace documentation; specifications for a MARC to BIBFRAME 2.0 conversion; and conversion programs. All will be shared with the LD4P partners and the broader community. The development will be tested through the LC BIBFRAME Metadata Production Pilot.

Library of Congress BIBFRAME 2.0 Project Proposal



  • BIBFRAME 2.0 vocabulary (namespace documentation) in html and RDF
  • revised BIBFRAME model
  • specifications for conversion from MARC to BIBFRAME
  • downloadable conversion programs



  • Maintenance of vocabulary, specs for conversion of MARC to BIBFRAME, and conversion programs
  • Installing Metaproxy upgrades at the Library of Congress
  • Providing answers to community questions and exploring issues as they arise
  • Participation in development of LD4P/L-Labs Extension to BIBFRAME



Sally McCallum (Library of Congress)
Ray Denenberg (Library of Congress)
Rebecca Guenther (Consultant)
Wayne Schneider (Indexdata)
Nate Trail (Library of Congress)
Kirk Hess (Library of Congress)



April 2017

March 2017

November 2016

  • Draft specifications for conversion from MARC to BIBFRAME shared with LD4P partners

April 2016