Dublin Core Extended

This plugin is available for accounts with Silver, Gold, or Platinum Plans.

The Dublin Core Extended plugin adds the full set of Dublin Core properties to the existing Dublin Core element set, including element refinements and supplemental elements. See the Dublin Core website, under “Properties in the /terms/ namespace.

Elements Added to the Dublin Core Element Set

The full set of DC elements are added to item metadata below the initial 20 fields available without this plugin. To reorder the elements in this extended Dublin Core set, see Managing Element Sets.


Access Rights

Accrual Method

Accrual Periodicity

Accrual Policy

Alternative Title


Date Available

Bibliographic Citation

Conforms To

Date Created

Date Accepted

Date Copyrighted

Date Submitted

Audience Education Level


Has Format

Has Part

Has Version

Instructional Method

Is Format Of

Is Part Of

Is Referenced By

Is Replaced By

Is Required By

Date Issued

Is Version OfManaging Element Sets




Date Modified





Rights Holder

Spatial Coverage

Table Of Contents

Temporal Coverage

Date Valid

Uninstalling Plugin

After installing, if you wish to deactivate the plugin so that the extended DC fields are not visible in the items, you must also click the “uninstall” button in the admin/plugins page to get rid of those additional fields. Remember, you will also lose any data from those fields.

The dc-rdf Output Format

The plugin also introduces the dc-rdf output format for expressing Dublin Core metadata using the Resource Description Framework. Omeka.net already comes with the dcmes-xml output format, which dc-rdf supersedes. To view this output, simply add “?output=dc-rdf” to the end of the URL on the items browse and show pages.

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