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Published byHannah Ortega Modified over 10 years ago
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Source, Relation, Identifier
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Topics zDefinitions need attention zPresentation in RDF zIs Source a type of Relation? zWhat is actually identified yActual resource yRepresentation/presentation zHow identify non-electronic resources?
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Topics zLabel for Relation type yCaptions zTransforming data DC to MARC/MARC to DC difficult, especially for source zDoes DC support nested descriptions f related resources? zIdentifiers vs. locators; what should go in the Identifier element?
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Topics zHow is the availability of a resource made known? zHow should issues of versioning be handled? zWhat is the status of the Relation types? zTerminology yWork, expression, manifestation, item
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Topics zDefinition of Relation
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Identifier in RDF Description about http://resource.html http://resource.html dc:Identifier resource.html
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Identifier in RDF zIf expressed in RDF, dc:Identifier need not be repeated.
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Relation resource.html dc:Relationrdf:value dcq:RelationType
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Dumb-down Rule zFollow the RDF Value arcs to get a string. zThere is a limit to how dumb you can get. yJuhas Law zThere is a limit to how smart you could get. yOles Corollary
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Problems with Relation zCurrent RFC definition requires two components yIdentifier yExpression of relation zHow expressed in unqualified DC? zWhat are dumb-down rules for qualified DC?
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Options zFix the definition zInline coding IsBasedOn http://another/resource zRethink the data model zRequire smarter parsing and dumb-down rules
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Proposal zModify definition for unqualified DC 1.1 as follows: Relation A standard identifier or free-text string identifying a related resource
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Is Source a type of Relation? zYes zIn effect, a particular qualifier, IsSourceFor, has been merged with the Relation element to create the Source element.
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Source zDesirable functions yPoint to a related resource yExpress a relationship yProvide metadata for or a pointer to metadata for the related resource
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Source: Preliminary Thoughts zLeave Source in unqualified DC zIn qualified DC, state that Source is a Relation with appropriate qualifier zBeing a relation, its values are the same as those allowed for relations. (proposed to be an identifier or free text). zRevise definition zMore work needed...
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