The Dublin Core Metadata Initiative began in 1994 to develop a core set of metadata semantics for describing and searching resources on the web. It consists of 15 basic metadata elements such as title, creator, and description. Dublin Core records can be expressed using XML and the Resource Description Framework (RDF), representing relationships between resources with subject-predicate-object triples. The Dublin Core Metadata Initiative maintains guidelines and models to define implementation of Dublin Core metadata.

1. Dublin Core Mary Jo Chrabasz LIS 882

2. Dublin Core Metadata Initiative Initial roots at 2 nd International World Wide Web conference in Chicago, IL in 1994

3. Workshop to discuss metadata semantics held in 1995

4. Core set of semantics to categorize web for search & retrieval

5. Named for Dublin, Ohio where 1995 workshop was held

6. More conferences and workshops have been held in a number of countries, including England, Australia, Finland, Germany, Canada, Japan, Italy, and the United States

7. Schema maintained by the Dublin Core Metadata Initiative (DCMI) group

8. Dublin Core : Basic Elements The Simple Dublin Core Metadata Element Set (DCMES) consists of 15 metadata elements: Title Creator Subject Description Publisher Contributor Date Type Format Identifier Source Language Relation Coverage Rights

9. Sample Dublin Core Record DC.Title: A basic doll to knit DC.Creator: Carol Meldrum DC.Subject: Knitting DC.Subject: Knitting – Patterns DC.Description: A knitting pattern for a simple doll shape that can be dressed in any way. DC.Type: Text DC.Source: "Excerpted from Knitted Icons: 25 Celebrity Doll Patterns by Carol Meldrum. Copyright 2007 by Collins & Brown. Excerpted with permission from Quick Books." DC.Publisher: Canadian Living DC.Format: text/html DC.Identifier: http://www.canadianliving.com/crafts/knitting/a_basic_doll_to_knit.php DC.Language: English

10. Sample Dublin Core record in XML <rdf: Description> <dc:title> A basic doll to knit </dc:title> <dc:creator> Carol Meldrum </dc:creator> <dc:subject> Knitting </dc:subject> <dc:subject> Knitting – Patterns </dc:subject> <dc:description> A knitting pattern for a simple doll shape that can be dressed in any way. </dc:description> <dc:type> Text </dc:type> <dc:source> &quot;Excerpted from Knitted Icons: 25 Celebrity Doll Patterns by Carol Meldrum. Copyright 2007 by Collins & Brown. Excerpted with permission from Quick Books.&quot; </dc:source> <dc:publisher> Canadian Living </dc:publisher> <dc:format> text/html </dc:format> <dc:identifier> http://www.canadianliving.com/crafts/knitting/a_basic_doll_to_knit.php </dc:identifier> <dc:language> English </dc:language> </rdf:Description>

11. Dublin Core continued All Dublin Core elements are considered optional and repeatable

12. There is no prescribed order to the elements nor any required elements

13. DC can be used with controlled vocabularies but does not require them