- From: Antoine Isaac <aisaac@few.vu.nl>
- Date: Thu, 08 Jan 2009 11:09:51 +0100
- To: Ivan Herman <ivan@w3.org>
- CC: Thomas Baker <baker@sub.uni-goettingen.de>, SWD Working Group <public-swd-wg@w3.org>
Hi Ivan, Thanks for the advice! But I'm afraid 'general RDF node'is not enough. As specified in the RDF concepts, this include literals: > A node may be a URI with optional fragment identifier (URI reference, or URIref), a literal, or blank So I would rather use 'general non-literal RDF node' I hope this does not sound too complex... It's a pity that no one ever re-used this Primer's 'structured RDF value thing'? Experts should read the primers more often ;-) Antoine > Hi Tom, Antoine, > > I must admit that it is the first time I even hear this 'structured RDF > value' term:-) It definitely does not look like a generally used notion > and, as you say, it may not be too meaningful in a graph context. > > In the context I would try to replace 'structured RDF value' by > something like 'general RDF node' or something like that... > > My 2 pence:-) > > Ivan > > > Thomas Baker wrote: >> Antoine, >> >> On Tue, Jan 06, 2009 at 12:42:48PM +0100, Antoine Isaac wrote: >>>> -- Section 4.2 uses the notion of a "structured RDF value". >>>> I feel ambivalent as to whether the phrase "structured >>>> value" is helpful. I note that a Google search on the >>>> exact phrase "structured RDF value" (in quotes) yields >>>> only one hit -- the RDF Primer, and a search on RDF and >>>> structured and value yields mostly material from 2004 or >>>> before. If we use it here, we would effectively resurrect >>>> its use. Do we really want to do this, or are there other >>>> ways of expressing this that are more up-to-date? >>>> >>>> I note that use of the phrase "structured value" is >>>> orthogonal to the question of whether or not to use >>>> rdf:value. >>> Personally I cannot come with something else. "structured resource" is not >>> ideal imho, as it can lead to many ambiguities. We could have "non-literal >>> value", but that does not say much... >> A word for this is needed in alot of other contexts as well >> (as in [1], which uses "non-literal value"), so I'd like to >> hear some more opinions. >> >> The context in Section 4.2 is: >> >> In this second pattern, the object of a documentation >> statement consists of a structured RDF value--that is, a >> resource node (eventually blank) that can be the subject >> of further RDF statements [RDF-PRIMER]. This is especially >> useful to represent with RDF more information about the >> documentation itself, such as its creator or creation >> date. >> >> The RDF Primer is a W3C Recommendation, but am I correct in >> saying that the phrase "structured RDF value" (or "structured >> value") is not currently being used in W3C documents or in >> the literature? >> >> In circa 2000, "structured value" was used in the Dublin Core >> context but for something quite different -- i.e., a method >> for encoding simple structured data in text strings which is >> rarely used today except for a few specific constructs. >> >> The phrase "structured value" seems to be aimed at people who >> are comfortable with the notion of descriptions nested within >> (XML) elements. In the graph paradigm, however, I'm not sure >> it is helpful to refer to a node which itself has properties >> as something that is ipso facto "structured". I agree that >> "structured resource" is no better, but in effect I think >> "structured value" presents the same difficulty. >> >> I am Cc'ing Ivan, who has presented alot of Semantic Web >> tutorials... >> >> Tom >> >> P.S. Antoine: in the above quote, the phrase "eventually blank" >> should be changed to "possibly blank" - something I missed before. >> >> [1] http://dublincore.org/documents/2008/11/03/profile-guidelines/#appc >> >
Received on Thursday, 8 January 2009 10:10:35 UTC