Chris Wj wrote:
I'm looking for a few links to some articles discussing the balance
between data and metadata when using RDF. It seems like the lines
between data and metadata are blurred quite a bit when using RDF. I
feel in my projects there is a tendency to want to put all information
in RDF form, using it for all the ways a relational db has been used,
except for cases of binary content such as media. For example, when
referencing a person, we have a URI for that person; dereferencing
that URI should return structured content concerning the details of
the person. But, we also have the concept of a Person's Name, and the
First, Middle, and Last are literals stored as RDF. We use RDF to
assign primary and alternate names to people in this fashion (Person
hasPrimarName PersonName exactly 1, Person hasAlternateName PersonName
[0,inf]). Is this abuse of the RDF data model? Should this type of
information (names) be in XML micro-format instead? What are the key
types of information to keep in RDF to take advantage of reasoning?
Besides links, I would also like to hear some opinions and lessons
learned if anyone wants to share. If this is off-topic for this
mailing list, please let me know. Also, if anyone has some links to
some good forums discussing these issues, please share.
-Chris
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Chris,
RDF started off as Metadata oriented, but its long evolved to cover
"Whole Data". Thus, you are looking at complete structured
representation of data objects. Ultimately, those binary representations
will also be expressed in RDF with full fidelity i.e. textual
alternative to the binary formats.
Alternate names etc.. are just attributes associated with the subject of
a structured description which should be discernible from the descriptor
representation (the RDF graph).
I do understand your confusion as the evolution of RDF and articulation
of its evolution are kinda out of sync.
--
Regards,
Kingsley Idehen
President & CEO
OpenLink Software
Web: http://www.openlinksw.com
Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca: kidehen
