Determining QName from a URIref in RDFS

John L. Clark

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Given a Property definition in RDFS, how can one determine the corresponding QName? I believe an example will be very illustrative; I will do my best to explain my confusion afterwards. Using the following RDF/XML:

<rdf:RDF xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> <rdf:property rdf:about="http://purl.org/dc/elements/1.1/title"> <!-- additional properties of this Property snipped for brevity
-->
</rdf:property>
</rdf:RDF>

How can one determine that this should be represented as the QName namespace:element (often referred to as dc:title with respect to this example, but any prefix could be used)? In general, say an application has as a reference an RDF schema, how can that application make statements using Properties (and potentially other elements, such as Classes) defined in that schema?

As just one example of where this sort of technique is hinted at in the specification, the RDF primer mentions the shortcut of replacing the rdf:Description element with the QName of the value of the rdf:type property (which is then removed from the list of properties for the Description). How can this "QName corresponding to the value of the the removed rdf:type property (a URIref that names a class)" (see the paragraph immediately preceding example 13 in RDF Primer, http://www.w3.org/TR/rdf-primer/#example13) be generated?

Thanks, and take care,

John L. Clark
 

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