Dublin Core™

The original Dublin Core™ of thirteen (later fifteen) elements was first published in the report of a workshop in 1995. In 1998, this was formalized in the Internet Engineering Task Force standard RFC 5791, and discussions began about making it a standard of the (US) National Information Standards Organization (NISO). This led to the publication of ANSI/NISO Z39.85-2001 and the International Standards Organization Standard 15836-2003. The most recent updates of these standards are RFC 5791 (2010), Z39-85-2012, and ISO 15836-1:2017. ISO 15836 Part 2, covering several dozen properties and classes that have been added to DCMI namespaces since 1999, was published in 2019.

Starting in 2002, DCMI grew into the role of "de facto" standards agency by maintaining its own, updated documentation for DCMI Metadata Terms. The DCMI Usage Board currently serves as the maintenance agency for ISO 15836.

In addition to these semantic specifications, DCMI working groups have developed specifications on other topics of relevance to metadata, such as encoding syntaxes, usage guidelines, and metadata models. In the rapidly evolving environment of the World Wide Web, most of these specifications have been superseded over time, sometimes after influencing subsequent work by other technical communities, notably the World Wide Web Consortium.

Current Specifications | Past Specifications

Specifications of Current Interest (3)

Title	Date Issued	Status
DCMI Metadata Terms	2020-01-20	recommendation
Namespace Policy for the Dublin Core™ Metadata Initiative (DCMI)	2007-07-02	recommendation process
Linked Data Competency Index (LDCI)	2017-06-28

Past Specifications (75)

Title	Date Issued	Status
A Cross-Domain Attribute Set	1998-10-09	past note
A Definition of Thesauri and Classification as Indexing Tools	2000-11-28	past note
A Syntax for Writing a List of Labelled Values in a Text String	1999-04-30	past note
Bibliographic Citation Working Draft	1999-07-02	past draft
Coverage Element Working Draft	1997-09-30	past draft
Coverage Working Group - Review of RFC2413	1999-04-08	past draft
Data Model Working Draft	1998-10-07	past draft
Date Element Working Draft	1998-01-27	past draft
DC-Libraries - Library Application Profile - Draft	2004-09-10	past draft
DCMI Abstract Model	2007-06-04	past recommendation
DCMI Box Encoding Scheme	2006-04-10	past recommendation
DCMI DCSV	2006-04-10	past recommendation
DCMI Government Application Profile	2001-09-17	past draft
DCMI Period Encoding Scheme	2006-04-10	past recommendation
DCMI Point Encoding Scheme	2006-04-10	past recommendation
DCMI Type Vocabulary	2012-06-14	past recommendation
DCMI Type Working Group - Review of RFC 2413	1999-03-15	past draft
Description and Cataloging of XML-Data Schemas	1999-05-25	past note
Domains and Ranges for DCMI Properties	2008-01-14	past note
Dublin Core™ and z39.50	1998-02-02	past note
Dublin Core™ Tags Applied to XML-Data Schemas for Purpose of Description and Categorization	1999-05-20	past note
Education Working Group: Draft Proposal	2000-10-05	past draft
Expressing Dublin Core™ metadata using the Resource Description Framework (RDF)	2008-01-14	past recommendation
Expressing Dublin Core™ metadata using XML	2006-05-30	past draft
Expressing Qualified Dublin Core™ in HTML/XHTML meta and link elements	2003-11-30	past recommendation
Format Element Working Draft	1998-10-23	past draft
Guidelines for implementing Dublin Core™ in XML	2003-04-02	past recommendation
List of Resource Types	1999-08-05	past draft
Metadata Semantics Shared Across Languages	1997-03-15	past draft
Names in Dublin Core	1998-10-27	past note
Notes on DCMI specifications for expressing Dublin Core™ metadata in RDF	2008-01-14	past note
On Information Factoring in Dublin Metadata Records	1996-04-17	past note
Plans for a distributed registry of Dublin Core™ in multiple languages.	1998-10-28	past draft
RDF Schema Declaration of Relation Types	1999-04-29	past note
Relation Element Working Draft	1997-12-19	past draft
Representing Peoples Names in Dublin Core	1998-02-03	past note
Subelement Working Draft	1998-02-11	past draft
The Singapore Framework for Dublin Core™ Application Profiles	2008-01-14	past note
The Use of Dublin Core™ Metadata in WebDAV	1998-10-05	past note
Type Element Working Draft	1998-10-23	past draft
Using Dublin Core	2005-11-07	past note
Kernel Metadata	2014-08-14	past note
Dublin Core™ Metadata Element Set, Version 1.1: Reference Description	2012-06-14	past recommendation
DCMI Generic Namespace Policy for RDF Vocabularies	2011-05-02	past note
Guidelines for Dublin Core™ Application Profiles	2009-05-18	past draft
Interoperability Levels for Dublin Core™ Metadata	2009-05-01	past note
Criteria for the Review of Application Profiles	2009-03-02	past note
A MoinMoin Wiki Syntax for Description Set Profiles	2008-10-06	past draft
Expressing Dublin Core™ Description Sets using XML (DC-DS-XML)	2008-09-01	past proposed
Notes on the DC-DS-XML XML Format	2008-09-01	past recommendation
Expressing Dublin Core™ metadata using HTML/XHTML meta and link elements	2008-08-04	past recommendation
Notes on DCMI specifications for Dublin Core™ metadata in HTML/XHTML meta and link elements	2008-08-04	past note
Description Set Profiles: A constraint language for Dublin Core™ Application Profiles	2008-03-31	past draft
DCMI Grammatical Principles	2007-12-03	past note
Expressing Dublin Core™ metadata using the DC-Text format	2007-12-03	past note
Dublin Core™ Collection Description Accrual Method Vocabulary	2013-06-26	past note
Dublin Core™ Collection Description Accrual Policy Vocabulary	2013-06-26	past note
Dublin Core™ Collection Description Frequency Vocabulary	2013-06-26	past note
Dublin Core™ Collection Description Terms	2013-06-26	past note
Dublin Core™ Collection Description Type (CDType) Vocabulary	2013-06-26	past note
Dublin Core™ Collection Description Application Profile	2007-03-09	past note
Dublin Core™ Collection Description Application Profile Summary	2007-03-09	past note
MARC Relator terms and Dublin Core	2005-12-08	past note
Dublin Core™ Application Profile Guidelines	2005-09-03	past note
Element Refinement in Dublin Core™ Metadata	2005-12-07	past note
Guidelines for Encoding Bibliographic Citation Information in Dublin Core™ Metadata	2005-06-13	past recommendation
Dublin Core™ Collection Type (CLDType) Vocabulary	2013-06-26	past note
Dublin Core™ Collection Description Application Profile: Data Model	2004-08-06	past note
DCMI Policy on Naming Terms	2004-04-05	past recommendation
DCMI Usage Board Review of Application Profiles	2003-02-11	past note
Expressing Simple Dublin Core™ in RDF/XML	2002-07-31	past recommendation
Expressing Qualified Dublin Core™ in RDF / XML	2002-05-15	proposed past
Education working group: draft proposal		past recommendation
DCMI Qualifiers	2000-07-11	past recommendation
Education working group: Draft proposal		past recommendation

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The Dublin Core Metadata Initiative (DCMI) is a project of ASIS&T—a U.S. 501(c)(3) nonprofit under the U.S. Internal Revenue Code. Contributions to DCMI through ASIS&T are tax-deductible to the full extent of the law in the United States.

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