Dublin Core

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What Does Dublin Core Mean?

Dublin Core (DC) is an improved digital cataloging system for making search engines much more
accurate and efficient. The schema for Dublin Core has many terms for
describing resources such as web pages and media like video and images. It also has data regarding physical objects such as CDs, books and even works of art. The main objective of this system is to create a
powerful and accommodating catalog involving all web objects. It can be used
for better search engine optimization. The metadata generated from this can be
used for quick description of web resources and for combining metadata from
different standards.


Techopedia Explains Dublin Core

Dublin Core contains 15
classical metadata elements for better cataloguing. These classic elements are
called the Dublin Core Metadata Element Set. These classical metadata elements include:

  • Creator – The creator of the object
  • Subject – The topic of the object
  • Title – The
    name of the object
  • Publisher – Details about the person who published the
  • Description – Short description of the object
  • Date – The date of
  • Contributor – Those who have edited the object
  • Identifier – The
    identifying agent for the object
  • Type – Type of the object
  • Format – The
    design and arrangement format of the object
  • Relation – Relation with any
    other object/objects
  • Language – The language of the object
  • Rights – Any
    kind of copyright information
  • Coverage – Where is the object in the real

There are two types of Dublin Cores: Simple Dublin Core and Qualified Dublin Core. The Simple Dublin Core is for simple pairs of attribute-values and uses the 15 classic elements, while Qualified Dublin Core uses three more elements for better definition of the data.


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Margaret Rouse
Senior Editor
Margaret Rouse
Senior Editor

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.