The Dublin Core metadata terms are a set of vocabulary terms which can be used to describe resources for the purposes of discovery.
The Simple Dublin Core Metadata Element Set (DCMES, purl.org/dc/elements/1.1/) consists of 15 metadata elements: Title, Creator, Subject, Description, Publisher, Contributor, Date, Type, Format, Identifier, Source, Language, Relation, Coverage, Rights. These terms was later refined and complemented with additional terms in the purl.org/dc/terms/ namespace.
Many of the Dublin Core terms are reused/recommended (imported) to some of the biodiversity vocabularies that are described and discussed here. The Darwin Core terms can be seen as an extension to the Dublin Core terms.
See also the DCMI Abstract Model: http://dublincore.org/documents/abstract-model/
Creators: DCMI Usage Board