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T. Baker / 27 March 2000 Metadata Grammar: Towards convergence between Dublin Core and RDF Thomas Baker GMD -- German National Research Center for Information.

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Presentation on theme: "T. Baker / 27 March 2000 Metadata Grammar: Towards convergence between Dublin Core and RDF Thomas Baker GMD -- German National Research Center for Information."— Presentation transcript:

1 T. Baker / 27 March 2000 Metadata Grammar: Towards convergence between Dublin Core and RDF Thomas Baker GMD -- German National Research Center for Information Technology 30 March 2000

2 T. Baker / 27 March 2000 Dublin Core (without Qualifiers) Element Name Element Object? Value TypeTitleDateCreator Document-like Objects (1996) Information Resources (2000) "T. Mustermann""Travel report" "Text"" " HASA Objects have Elements (properties). Elements have Names and Values.

3 T. Baker / 27 March 2000 Value Encoding Schemes Element Object? TypeTitleDateCreator Resource " " HASA VES W3C-DTF Says that the string " " is formatted according to a W3C profile based on ISO8601.

4 T. Baker / 27 March 2000 Element Refinements Element Object? TypeTitleDateCreator Resource " " HASA VES W3C-DTF ER Created Specifies that the Date associated with the resource is the Date Created. ISA

5 T. Baker / 27 March 2000 Value Components? Element Object? TypeTitleDateCreator Resource HASA "T. Mustermann" VC HASA Type "Person" Affiliation "GMD" Were proposed as a type of Qualifier. Specify that T. Mustermann is a Person who works at GMD.

6 T. Baker / 27 March 2000 No, let's move them to... Element Object? TypeTitleDateCreator Resource HASA "T. Mustermann" VC HASA Type "Person" Affiliation "GMD"

7 T. Baker / 27 March a People (or Agent) Core Element Set Element Name Element Object? Value TypeAffiliationBirthdateName People-like Objects? "T. Mustermann""GMD" "Person"" " HASA

8 T. Baker / 27 March 2000 DCMI sees Elements and Qualifiers Element HASA Qualifier ISA ?? Element Refinements Value Encoding Schemes are both "Qualifiers" DCMI has had no grammatical term for the high-level "object"

9 T. Baker / 27 March 2000 RDF sees Resources, Relations, and Classes ClassResource Type Date HASA ISA HASA Class W3C-DTF Resource ISA "Text" Class Date Created Information Resource Should DCMI redefine Type as a "Class Refinement"? Should DCMI define a grammatical entity, "Class"?


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