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RDFTM.HandlingScopeInGeneralr1.3 - 01 Nov 2005 - 19:23 - ValentinaPresuttitopic end

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Scope

Topic Maps defines the concept of scope as the context within which a statement is valid. Formally the scope is composed of a set of topics that together define the context. RDF does not have a matching concept, nor does it define any vocabulary for the representation of context.

For interoperability between RDF and Topic Maps, this guideline document defines a specific property in the rdftm: vocabulary, to be used with reified statements, in order to specify in what context the statement can be considered valid.

The following property is involved in the guidance for translation of scope:

  • rdftm:scope

Guided RDF2TM
  • Every set of RDF assertions of the form:

    ex:X rdf:type rdf:Statement
    ex:X rdf:Subject ex:A
    ex:X rdf:Predicate ex:p
    ex:X rdf:Object ex:B
    ex:X rdftm:scope ex:S

    maps to a Topic Maps assertion of the form:

    p( A , B ) / S

Guided TM2RDF
  • Every Topic Maps assertion of the form:

    p( A , B ) / S

    maps to a set of RDF assertions of the form:

    ex:X rdf:type rdf:Statement
    ex:X rdf:Subject ex:A
    ex:X rdf:Predicate ex:p
    ex:X rdf:Object ex:B
    ex:X rdftm:scope ex:S


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