Resource Description Framework
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| − | '''Resource Description Framework (RDF)''' is a language built on [[XML]] that enables the expression of statements using properties and attributes. These properties and attributes are defined in RDF Schema. For example, to say "<tt>http:// | + | '''Resource Description Framework (RDF)''' is a language built on [[XML]] that enables the expression of statements using properties and attributes. These properties and attributes are defined in RDF Schema. For example, to say "<tt>http://gicl.cs.drexel.edu/wiki/Semantic_Web</tt> is in a <tt>language</tt> that is <tt>English</tt>", I would need the property "language" defined by some [[Resource Description Framework Schema|RDF Schema]]. The [http://dublincore.org/ Dublin Core Metadata Initiative (DCMI)] provides us with this definition [http://purl.org/dc/elements/1.1/language here]. Furthermore, this statement would look like the following bit of RDF code: |
<code><rdf:Description rdf:about="http://ci-team.cs.drexel.edu/semantic/"> | <code><rdf:Description rdf:about="http://ci-team.cs.drexel.edu/semantic/"> | ||
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* [http://www.w3.org/TR/rdf-schema/ W3C's RDF-S] W3C website that describes the vocabulary of RDF-S | * [http://www.w3.org/TR/rdf-schema/ W3C's RDF-S] W3C website that describes the vocabulary of RDF-S | ||
* [http://www.w3.org/1999/02/22-rdf-syntax-ns RDF-S for RDF] The RDF-S for the RDF vocabulary (RDF terms) | * [http://www.w3.org/1999/02/22-rdf-syntax-ns RDF-S for RDF] The RDF-S for the RDF vocabulary (RDF terms) | ||
| − | * | + | * [http://www.w3.org/2000/01/rdf-schema The RDF Schema Vocabulary] |
| − | * [http://www.w3.org/TR/rdf-primer/ W3C's RDF Primer] A very useful W3C guide for learning RDF | + | * [http://www.w3.org/TR/rdf-primer/ W3C's RDF Primer] A '''very''' useful W3C guide for learning RDF |
* [http://www.w3.org/2000/10/swap/Primer W3C's Primer: Getting into RDF and Semantic Web using N3] A simpler W3C RDF guide | * [http://www.w3.org/2000/10/swap/Primer W3C's Primer: Getting into RDF and Semantic Web using N3] A simpler W3C RDF guide | ||
* [http://www.xml.com/pub/a/2001/01/24/rdf.html XML.com's ''What is RDF?''] An article that discusses some applications and uses for RDF | * [http://www.xml.com/pub/a/2001/01/24/rdf.html XML.com's ''What is RDF?''] An article that discusses some applications and uses for RDF | ||
Latest revision as of 16:24, 21 August 2006
Resource Description Framework (RDF) is a language built on XML that enables the expression of statements using properties and attributes. These properties and attributes are defined in RDF Schema. For example, to say "http://gicl.cs.drexel.edu/wiki/Semantic_Web is in a language that is English", I would need the property "language" defined by some RDF Schema. The Dublin Core Metadata Initiative (DCMI) provides us with this definition here. Furthermore, this statement would look like the following bit of RDF code:
<rdf:Description rdf:about="http://ci-team.cs.drexel.edu/semantic/">
<dc:language>en</dc:language>
</rdf:Description>
RDF and RDF-S became W3C recommendations in February and March, 1999. Since then, RDF has undergone renovation (most notably the updated 2004 recommendation) and is still actively developed and widely used today. RSS and Adobe's XMP Metadata are two popular, commercialized uses of RDF, not to mention several semantic web products from MIT's Simile project.
See also
- W3C's RDF W3C's RDF activity with recommended readings, overviews, projects, and other resources
- W3C's RDF-S W3C website that describes the vocabulary of RDF-S
- RDF-S for RDF The RDF-S for the RDF vocabulary (RDF terms)
- The RDF Schema Vocabulary
- W3C's RDF Primer A very useful W3C guide for learning RDF
- W3C's Primer: Getting into RDF and Semantic Web using N3 A simpler W3C RDF guide
- XML.com's What is RDF? An article that discusses some applications and uses for RDF
- Dublin Core Metadata Initiative (DCMI)
- http://purl.org/dc/elements/1.1/languagedc:language
- RSS
- Adobe's XMP Metadata
- MIT's Simile project
