NEW DRAFT: Motivations and SKOS

While we are in general supportive of the idea to use SKOS for modeling
Motivations, giving access to inter-community links, narrower and broader
terms and so forth, one issue that has arisen is the ability to query using
SPARQL for all motivations below a certain instance.  For example, if you
are interested in Editing, then you might also want to also retrieve
�Updating�, �Correcting�, �Deleting� and so forth.  Or Linking to include
Referencing and Citing.

If subclassing is used, then this would be part of a regular SPARQL engine,
however with SKOS we�re not sure that it�s possible at all to construct the
appropriate graph traversal query to account for an unknown number of
levels.

If this is not a requirement, then we think that we should use SKOS. If it
is a requirement, then we will stick with subclassing.  Please let us know.

Many thanks,

Rob & Paolo