The term relationshipOfResource has the recommendation to use a controlled vocabulary. The vocabulary does not yet exist - it is an aspect that requires community development. The ResourceRelationship class has the added benefits over the associatedOccurrences term that there is no dependence on the syntax of the content to discern the correct meaning.

From http://rs.tdwg.org/dwc/terms/index.htm#relationshipOfResource:

Definition: The relationship of the resource identified by relatedResourceID to the subject (optionally identified by the resourceID). Recommended best practice is to use a controlled vocabulary.

Comment: Examples: "duplicate of", "mother of", "endoparasite of", "host to", "sibling of", "valid synonym of", "located within". For discussion see http://code.google.com/p/darwincore/wiki/ResourceRelationship

On Tue, Aug 24, 2010 at 7:07 AM, Mark Wilden <mark@mwilden.com> wrote:
On Tue, Aug 24, 2010 at 6:24 AM, John Wieczorek <tuco@berkeley.edu> wrote:
> Note that associatedOccurrences is one of the several terms that are meant
> to allow lists of relationships between resources to be captured in a single
> field. Others include associatedMedia, associatedReferences,
> associatedSequnces, and associatedTaxa. The main purposes of these fields is
> to provide a mechanism to share relationship information in a flat
> application profile such as the Simple Darwin Core
> (http://rs.tdwg.org/dwc/terms/simple/index.htm). If an application profile
> isn't constrained by being flat, then there is a much more robust way to
> capture relationships, using the ResourceRelationship class and it's
> constituent terms (http://rs.tdwg.org/dwc/terms/index.htm#relindex).

However, the values of the description of the relationship
(http://rs.tdwg.org/dwc/terms/index.htm#relationshipOfResource) are
not controlled, so this still doesn't provide a "community-defined"
vocabulary that Bob was asking about.

///ark
Web Applications Developer
Center for Applied Biodiversity Informatics
California Academy of Sciences
_______________________________________________
tdwg-content mailing list
tdwg-content@lists.tdwg.org
http://lists.tdwg.org/mailman/listinfo/tdwg-content