Starting in , the Dublin Core community focused on " application profiles " — the idea that metadata records would use Dublin Core together with other specialized vocabularies to meet particular implementation requirements. As part of an extended set of DCMI metadata terms, Dublin Core became one of the most popular vocabularies for use with RDF, more recently in the context of the linked data movement. This policy describes how terms are assigned and also sets limits on the amount of editorial changes allowed to the labels, definitions, and usage comments. Simple Dublin Core comprised 15 elements; Qualified Dublin Core included three additional elements Audience, Provenance and RightsHolder , as well as a group of element refinements also called qualifiers that could refine the semantics of the elements in ways that may be useful in resource discovery. The DCMI has established standard ways to refine elements and encourage the use of encoding and vocabulary schemes. There is no prescribed order in Dublin Core for presenting or using the elements.
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Each term has a unique URI in the namespace http: Full information on element definitions and term relationships can be found in the Dublin Core Metadata Registry. Views Read Edit View history. Content is available under Public Domain unless otherwise noted. It is widely used for describing documents and other resources, not only within the library community where it originated.
The additional terms were identified, generally in working groups of the DCMI, and judged by the DCMI Usage Board to be in conformance with principles of good practice for the qualification of Dublin Core metadata elements. It specifies 15 metadata elements properties for describing a resource, which is documented using free text: Collective intelligence Description logic Folksonomy Geotagging Information architecture Knowledge extraction Knowledge management Knowledge representation and reasoning Library 2.
Because the definition of the terms often contains domains and ranges, which may not be compatible with the pre-RDF definitions used for the original 15 Dublin Core elements, there is a separate namespace for the original 15 elements as previously defined: PBCore is also based on Dublin Core.
The DCMI has established standard ways to refine elements and encourage the use of encoding and vocabulary schemes. Dublin Core metadata may be used for multiple purposes, from simple resource description to combining metadata vocabularies of different metadata standardsto providing interoperability for metadata vocabularies the linked data cloud and Semantic Web implementations.
In addition to element refinements, Qualified Dublin Core includes a set of recommended encoding schemes, designed to aid in the interpretation of an element value. Archived from the original on 16 November The Dublin Core Schema is a small set of vocabulary terms that can be used to describe digital resources video, images, web pages, etc.
As part of an extended set of DCMI metadata terms, Dublin Core became one of the most popular vocabularies for use with RDF, more recently in the context of the linked data movement.
This makes it easy to write Dublin Core metadata any text will conform to the standardbut very difficult to automate metadata operations. The guiding principle for the qualification of Dublin Core elements, colloquially known as the Dumb-Down Principle states that an application that does not understand a specific element refinement term should be able to ignore the qualifier and treat the metadata value as if it were an unqualified broader element.
The Dublin Core Abstract Model  a reference model against which particular Dublin Core encoding guidelines can be compared, independent of any particular encoding syntax. The Dublin Core standard originally included two levels: Because ISO is so popular, it is probably useful for providing high-level metadata of the likes of a dataset series e.
Semantic analytics Semantic broker Semantic computing Semantic mapper Semantic matching Semantic publishing Semantic reasoner Semantic search Semantic service-oriented architecture Semantic wiki. Entering these will help you to correctly cite the URL.
Navigation menu Personal tools English Log in. The Dublin Core Metadata Initiative DCMI  provides an open forum for the development of interoperable online metadata standards for a broad range of purposes and of business models.