Dublin Core

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The Dublin Core set of metadata elements provides a small and fundamental group of text elements through which most resources can be described and catalogued. Using only 15 base text fields, a Dublin Core metadata record can describe physical resources such as books, digital materials such as video, sound, image, or text files, and composite media like web pages. Metadata records based on Dublin Core are intended to be used for cross-domain information resource description and have become standard in the fields of library science and computer science. Implementations of Dublin Core typically make use of XML and are Resource Description Framework based.

Dublin Core is defined by ISO through ISO Standard 15836, and NISO Standard Z39.85-2007.



The "Dublin" in the name refers to Dublin, Ohio, U.S., where the work originated from an invitational workshop (the OCLC/NCSA Metadata Workshop) hosted in 1995 by Online Computer Library Center, a library consortium that is based there. (NCSA is the National Center for Supercomputing Applications.)

The "Core" refers to the fact that the metadata element set is a basic but expandable "core" list.[1]

The semantics of Dublin Core were established and are maintained by an international, cross-disciplinary group of professionals from librarianship, computer science, text encoding, museums, and other related fields of scholarship and practice.

The Dublin Core Metadata Initiative (DCMI) incorporated as an independent entity (separating from OCLC) in 2008[2] that provides an open forum for the development of interoperable online metadata standards for a broad range of purposes and business models. DCMI's activities include consensus-driven working groups, global conferences and workshops, standards liaison, and educational efforts to promote widespread acceptance of metadata standards and practices.

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