Brian McBride [mailto:bwm@hplb.hpl.hp.com] wrote: >Hi Lee, > Hi Brian! >> Discussions on these issues seem to have died down, yet the issues have not >> been resolved and the new RDFCore working group are not even going to >> address them. > >There is an issue on the RDF Issues list: > > http://www.w3.org/2000/03/rdf-tracking/#rdfms-qname-uri-mapping > >Does this, together with the link to Perry's message cover the issues >you'd like to see resolved, or are there other aspects you'd like to >draw the WG's attention to? > >Brian The link to Perry's message covers one aspect, "weird, unwieldy namespaces with different semantics to other XML namespaces" - i.e. the deviation of namespace treatment in RDF from its use in other XML technologies and the implied intent of the XML Namespace spec (as stated in one of the appendices [1], IOW it was made clearer *and* normative). The two other issues were: * "open grammar, which is harder to validate simply (and nigh on impossible to do properly with DTDs)" - Syntax validation within the context of RDF embedded in other XML grammars would be easier if the RDF syntax were only of the 'Fixed-Schema' variety, see [2]. Currently, the propertyElt construct, and abbreviated forms of RDF are of the 'Schema-follows-data' variety. * "resolution of RDF schemas clashes with resolution of XML schemas" - both XML Schema and RDF Schema utilise namespace URIs to locate markup that describes XML syntax rules and RDF model rules, respectively. I am now thinking this is not so much of an issue, as you could always use content-negotiation to retrieve the type of schema you are looking for, and there is another mechanism within RDF to state where to find a schema description for a given resource (i.e. rdfs:isDefinedBy). [1] http://www.w3.org/TR/REC-xml-names#ns-expnames [2] http://lists.w3.org/Archives/Public/www-rdf-interest/2001Apr/0346.html regards Lee PS, I for one find it very reassuring that the issues list is now being actively maintained, keep up the good work!Received on Monday, 23 April 2001 08:04:44 UTC
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