I think Simon has it right for DC Simple.
David
At 10:00 AM 1/30/98 +0800, Simon Cox wrote:
>I suggest that the following is likely to satisfy
>the single-field requirement of DC-Simple, while
>still bearing a sensible affinity to the more
>structured form of the semantics which will be
>encoded in DC-Qualified.
>
>------
>
>4.3.13 RELATION
>
>The RELATION element indicates a link between
>the present resource and another resource.
>The relationship is fully specified by
>the indentity of the two resources and the
>nature of the relationship.
>
>Relationships between resources fall into a number
>of classes, such as parent-child, aggregations, etc.
>A list of types which accomodates most expected
>relationships is [here insert reference to a more
>detailed explanation based on the Relation WG report?]:
>
> IsPartOf
> HasPart
> IsVersionOf
> HasVersion
> IsFormatOf
> HasFormat
> References
> IsReferencedBy
> IsBasedOn
> IsBasisFor
> Requires
> IsRequiredBy
>
>The recommended method for expressing a relationship
>in unqualified DC is:
>
>IDENTIFIER = "unique identifer for the present resource"
>RELATION = "relationship-type; unique identifer for the related
>resource"
>
>where "relationship-type" is a token drawn from the list above.
>In the case where the DC metadata is embedded in
>the present resource, the value for IDENTIFIER is
>implied (ie the present resource).
>Examples illustrating this usage are:
>
>IDENTIFIER = "paper.html"
>RELATION = "IsFormatOf; paper.doc"
>
>IDENTIFIER = "Mt. Kosciusko"
>RELATION = "IsPartOf; Snowy Mountains in Australia"
>
>IDENTIFIER = "program.c"
>RELATION = "Requires; stdio.h"
>
>IDENTIFIER = "Peter Carey's novel Oscar and Lucinda"
>RELATION = "IsBasisFor; 1998 movie Oscar and Lucinda"
>
>(the casual form identifers used here for illustration
>would be replaced by more formal identifiers in practice
>- see IDENTIFIER).
>In qualified DC the two components given in RELATION
>here will be structured using sub-elements for easier
>automated processing.
>--
>__________________________________________________
>Dr Simon Cox - Australian Geodynamics Cooperative Research Centre
>CSIRO Exploration & Mining, PO Box 437, Nedlands, WA 6009 Australia
>T: +61 8 9389 8421 F: +61 8 9389 1906 [log in to unmask]
>http://www.ned.dem.csiro.au/SimonCox/
>
>
>
David Bearman, President
Archives & Museum Informatics
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