Namespaces

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[edit] About Namespaces

There is some confusion over the purpose of namespaces. A namespace serves an important function - to avoid naming conflicts. This happens in both RDF and XML.

The idea is quite simple - a namespace uses a URL to help machines distinguish between elements. Often, a namespace prefix or QName is used to distinguish different namespaces. QNames are used in RDF/XML, while "@prefix" symbols are used in Notation3. 'xmlns' notation is used in both XML and RDF/XML.

The URL that is used in XML and RDF namespaces does not have to convey anything. It should ideally end in either an '/' or '#', but there does not have to be anything on the page. With RDF, though, one may as well put an OWL ontology or RDFS schema describing the predicates on offer at that namespace.

[edit] GetSemantic RDF Namespace Hosting

GetSemantic.com can be used as a namespace host and a holder of ontologies. If you wish to do this, please post your proposal to Discuss.

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