Dublin Core - technical definition

A set of meta-data descriptions about resources on the Internet. Used for resource discovery, it contains data elements such as title, creator, subject, description, date, type, format and so on. Dublin Core descriptions are often included in HTML meta tags. All Dublin Core Metadata Initiative (DCMI) elements are presented in the following structure. See meta tag.

   Name - label
   ID - unique identifier (often same as name)
   Version - DCMI version
   Registration Authority - "DCMI"
   Language - written language
   Definition - explanation and concept
   Obligation - must value be present?
   Datatype - value type
   Maximum Occurrence - limit to repeatability
   Comment - remarks about its application