- From: Brian McBride <bwm@hplb.hpl.hp.com>
- Date: Mon, 21 May 2001 15:24:48 +0100
- To: Dan Brickley <danbri@w3.org>
- CC: w3c-rdfcore-wg@w3.org
One way of interpreting the current spec is that the constraints, such as on the use of all the ordinal properties apply to the container as a whole, but that there is no constraint specified on a representation of a container providing only a partial description. The proposal written by Dave Beckett and me proposed how rdf:li could be defined in a partial represenation of a container. It is worth noting also that there are no domain and range constraints specified for the the ordinal properties. Brian Dan Brickley wrote: > > Regarding http://lists.w3.org/Archives/Public/w3c-rdfcore-wg/2001May/0084.html > RDFCore WG 2001-05-18 Teleconference Agenda action review A3: > > A3: Ora Lassilla/ send analysis (#rdf-container-syntax-ambiguity and > Dan Brickley #rdf-containers-syntax-vs-schema)to rdfcore-wg list > > I wrote up some *brief* notes on my Hong Kong discussion w/ Ora last week, > sent them to Ora and the www-archive list archiver rather than this list. > I wouldn't call this a full analysis of the problem w/ the container > model, but the note is at: > > http://lists.w3.org/Archives/Public/www-archive/2001May/0000.html > > Excerpted conclusion: > > [[ > Two problems are posed by this formulation: > > - it suggests that any RDF model which describes some container is in > possession of a complete description of that container. The phrase "the > elements of Ord must be used in sequence starting with RDF:_1" appears to > rule out the use of the formal RDF container model for descriptions where > only partial information is available. Use case: an rdf:Seq representing > the (incompletely represented) houses in a street. > > - it interacts with the syntactic sugar provided by the <rdf:li> XML > syntax machinery: RDF parsers typically assume that containers encoded > using this construct contain complete descriptions of some Bag, Seq or > Alt. But there is no syntax-level support for making this clear. > > This situation is in tension with a broad design goal of RDF: to allow Web > services to aggregate and process partial descriptions. > ]] > > We (Ora and I) do not yet make any suggestions as to how to deal with > this problem. > > Dan
Received on Monday, 21 May 2001 10:25:19 UTC