- From: Seaborne, Andy <andy.seaborne@hp.com>
- Date: Mon, 21 Mar 2005 21:11:32 +0000
- To: Bijan Parsia <bparsia@isr.umd.edu>
- Cc: Dan Connolly <connolly@w3.org>, Kendall Clark <kendall@monkeyfist.com>, Eric Prud'hommeaux <eric@w3.org>, DAWG Mailing List <public-rdf-dawg@w3.org>, Hugo Haas <hugo@w3.org>, Philippe Le Hegaret <plh@w3.org>
Bijan Parsia wrote: > > On Mar 21, 2005, at 2:21 PM, Dan Connolly wrote: > >> On Mon, 2005-03-21 at 13:27 -0500, Bijan Parsia wrote: >> >>> On Mar 21, 2005, at 1:12 PM, Dan Connolly wrote: >>> [snip] >>> >>>> LC candidate; i.e. proposal from the editor to the WG, not from the WG >>>> to the world. And all indications are that the QL editors are on >>>> track for 31 Mar LC candidate. >>> >>> >>> Hmm. Perhaps. It's not so clear to me. >>> >>>>> Things that need to be completed for protocol (IMHO): >>>>> 1) XML syntax for query language with XML Schema description >>>>> (kendall >>>>> and I are working on that; of course, bit of a moving target as the >>>>> query language keeps changing, or potentially changing) >>>> >>>> >>>> I don't see that as critical path. It's not in the charter, >>>> not among our requirements or even objectives, and not among the >>>> WG issues. >>> >>> >>> I think it implicit in using WSDL. >> >> >> Our discussion was fairly explicit to the contrary: >> >> <xs:element name='queryString' type='xs:string'/> <!-- in, e.g., >> SPARQL syntax --> > > > I'm sorry, I didn't realize that had force instead of being merely a > straw proposal for discussion. People were having enough trouble with > the WSDL (which was novel to most) that I didn't think it was a good > point to raise then. > > I raise it now. That essentially makes the input untyped which is very > very unfortunate for a slew of reasons that I have enumerated elsewhere. > It looks especially odd given that we have an XML output syntax. > > One thing I may not have mentioned is that it make useful service > composition very difficult to impossible. Service composition is a large, open ended area and I don't have a characterization of the problem as applied to SPARQL. For example, it isn't automatically a need for an XML syntax. We do service composition but by pulling out the abstraction and combining conceptualized services - that means abstracting away from either XML or human readable synatx and the presence of an XML form does not aim the process significantly. Andy > >> -- http://www.w3.org/2001/sw/DataAccess/ftf5-bos.html#item_03 >> >> >>>> I'm not inclined to add it to the issues list. If there's support for >>>> it as a requirement from more than one WG member, I suspect I'll >>>> discover that in due course (perhaps as a comment on this week's >>>> agenda) I haven't followed the thread closely, since, as I say, it's >>>> not on our critical path. >>> >>> >>> Well, I've argued why it is important to the protocal document, at >>> length. I've been sick so I've not replied to the very end of the >>> thread, but I saw nothing directed substantially to my arguments. >> >> >> Silence doesn't imply agreement... especially for things that >> aren't on our agenda. > > > I didn't say, nor did I imply, it did. To be clear, I'm unsure what else > I am to do to advance this point. I guess I need to get someone to show > some support on list? > >>>>> 2) Sensible XML Schemable XML output format (I thought this was >>>>> the >>>>> same as the xsi:type discussion, but I'm happy to raise a separate >>>>> issue). >>>> >>>> >>>> That's on the editor's TODO list... >>>> "ACTION DaveB: to consider use of xsi:dataType ala comment from Steer" >>>> >>>> but there isn't a WG decision in the critical path. >>> >>> >>> I would like to raise having a fully W3C Schemable XML syntax for >>> results, then. >> >> >> As I say, I'm not inclined to add it to the issues list unless/until >> there's more support. > > [snip] > Why? As a working group member, I am raising this as an issue. Actually, > I believe that that is very similar to the xsi:type issue. So you have > an external and an internal person raising this issue. > > Or, if you prefer, you can wait until we've completed the work with a > fully fleshed out proposal. > > I'll raise another small complexity: The psuedo-wsdl tried to have a > union type of a (presumably) w3c schema type and a relax ng type (for > the output, to capture bindings and rdf graphs). This would require an > extension to WSDL as it stands. One possible solution is to back > translate everything to relax. Another would be to accept a less > restrictive syntax for RDF/XML, which may be more acceptible, given that > if you accept RDF/XML at all, you have to do a lot of work outside of > any schema language I know of. *AND* that people accepting RDF/XML > accept that. > > Cheers, > Bijan Parsia. > >
Received on Monday, 21 March 2005 21:12:15 UTC