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RDF ReferenceRDF Dublin Core Metadata Initiative
The Dublin Core Metadata Initiative (DCMI) has created some predefined properties for describing documents.
The Dublin Core
RDF is metadata (data about data). RDF is used to describe information resources.
The Dublin Core is a set of predefined properties for describing documents.
The first Dublin Core properties were defined at the Metadata Workshop in Dublin, Ohio in 1995 and is currently maintained by the Dublin Core Metadata Initiative.
| Property | Definition |
|---|---|
| Contributor | An entity responsible for making contributions to the content of the resource |
| Coverage | The extent or scope of the content of the resource |
| Creator | An entity primarily responsible for making the content of the resource |
| Format | The physical or digital manifestation of the resource |
| Date | A date of an event in the lifecycle of the resource |
| Description | An account of the content of the resource |
| Identifier | An unambiguous reference to the resource within a given context |
| Language | A language of the intellectual content of the resource |
| Publisher | An entity responsible for making the resource available |
| Relation | A reference to a related resource |
| Rights | Information about rights held in and over the resource |
| Source | A Reference to a resource from which the present resource is derived |
| Subject | A topic of the content of the resource |
| Title | A name given to the resource |
| Type | The nature or genre of the content of the resource |
A quick look at the table above indicates that RDF is ideal for representing Dublin Core information.
RDF Example
The following example demonstrates the use of some of the Dublin Core properties in an RDF document:
<?xml version="1.0"?>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dc= "http://purl.org/dc/elements/1.1/">
<rdf:Description rdf:about="http://www.w3schools.com">
<dc:description>W3Schools - Free tutorials</dc:description>
<dc:publisher>Refsnes Data as</dc:publisher>
<dc:date>2008-09-01</dc:date>
<dc:type>Web Development</dc:type>
<dc:format>text/html</dc:format>
<dc:language>en</dc:language>
</rdf:Description>
</rdf:RDF>
<rdf:RDF
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:dc= "http://purl.org/dc/elements/1.1/">
<rdf:Description rdf:about="http://www.w3schools.com">
<dc:description>W3Schools - Free tutorials</dc:description>
<dc:publisher>Refsnes Data as</dc:publisher>
<dc:date>2008-09-01</dc:date>
<dc:type>Web Development</dc:type>
<dc:format>text/html</dc:format>
<dc:language>en</dc:language>
</rdf:Description>
</rdf:RDF>
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