Qualified Dublin Core:
Dublin Core (dc) is a metadata standard commonly used in repositories. It is composed of fifteen elements, which are commonly referred to as simple Dublin Core. Qualified Dublin Core includes three additional elements (Audience, Provenance and RightsHolder), as well as a group of element refinements (also called qualifiers) that refine the semantics of the elements: http://dublincore.org/documents/usageguide/#whatis.
More information about
these qualifiers can be found here:
http://dublincore.org/documents/usageguide/qualifiers.shtml
Qualified Dublin Core and the VIF Essential Version Metadata:
The qualifiers available in Qualified Dublin Core enable a metadata creator to define more clearly the information stored in the fields of the central set of 15 fields. Most important for version identification are the extensions given to Date, Format and Relation. Please see the tables below for more information. Links go direct to the Dublin Core website where each term is explained.
- Date
dc:date created valid available issued modified dateAccepted dateCopyrighted dateSubmitted - Format
dc:format extent medium - Relation:
| dc:relation | isVersionOf |
| hasVersion | |
| isReplacedBy | |
| replaces | |
| isRequiredBy | |
| requires | |
| isPartOf | |
| hasPart | |
| isReferencedBy | |
| references | |
| isFormatof | |
| hasFormat | |
| conformsTo |
Qualified Dublin Core and the VIF Essential Version Metadata:
In addition to the ability of simple Dublin Core to store some version information, Qualified DC allows much more description about the entry in each field. The dc:relation field (as seen above) allows for version relationships to be established, and therefore satisfies much more than simple DC for fulfilling VIF's essential version information.
Application Profiles:
Dublin Core can also be adapted to the needs of certain
communities, object types or technologies. Such specific adaptations are often
referred to as
application profiles. VIF recommends the support of
application profiles for specific types of object, such as scholarly works and
images. For more information about implementing Dublin Core application
profiles, please see here in
the framework.