On Thu, 18 Sep 2003, Sigfrid Lundberg - LUB NetLab wrote:
> On Thu, 18 Sep 2003, Pete Johnston wrote:
> > Hi Roland,
> > > I thought "seeAlso" pointers living on "valueURI"'s
> > > could potentially be used (dereferenced) to obtain more
> > > information about the resource denoted by the "valueURI".
> > But the "model" in Andy's section 3 doesn't mention using seeAlso
> > pointers. It says there may be some "related metadata" but it's silent
> > on how you might access that related metadata. So I don't think section
> > 3 implies a dependency on seeAlso in RDF(S)?
> What other systems are there that could point to related metadata in that
> way ?
As noted in section 5., related metadata may be embedded into instance
metadata (depending on capabilities of the encoding sytax). For example,
it *is* possible to do this in RDF/XML. See Appendix B
"The related metadata in the second RDF/XML document is linked to the
first using the rdfs:seeAlso property and the URI of the RDF/XML document.
Note that it is not strictly necessary to separate the two graphs in this
way; it is perfectly valid to represent the second graph as a sub-graph of
the first, as shown in figure 1. However, for the purposes of this
document, the two graphs have been separated in order to more clearly
differentiate the DC metadata record from the related metadata. In some
cases it will be good practice to facilitate this separation anyway. For
example, in order to serve the second graph from a directory service of
Distributed Systems, UKOLN, University of Bath, Bath, BA2 7AY, UK
http://www.ukoln.ac.uk/ukoln/staff/a.powell/ +44 1225 383933
Resource Discovery Network http://www.rdn.ac.uk/