- From: Ian Horrocks <ian.horrocks@comlab.ox.ac.uk>
- Date: Wed, 20 May 2009 17:50:20 +0100
- To: Jim Hendler <hendler@cs.rpi.edu>
- Cc: "OWL 1.1" <public-owl-wg@w3.org>
Regarding implementations, we already have an implementation page [1]. I expect to add several more (candidate) implementation in the near future. Ian [1] http://www.w3.org/2007/OWL/wiki/Implementations On 20 May 2009, at 16:52, Jim Hendler wrote: > Ian - I think these are all necessary, but I think there are some > others we need for QL and RL - particularly since we claim these to > be related to RDBMS technologies, I think we need to see that > validated. > But please note the following (also addresses what Sandro stated > about OWL Full in his email) -- in WOWG we had tests in our test > set that tested every single feature (i.e. each possible vocabulary > item) added to RDF(S) by OWL - so that the criteria that required > every test be passable meant that every feature of Full (and also > of the others) was at least separately implementable. The 80% was > not meant to show that many features could be supported together - > and it also included some where the expectation was that a DL > reasoner would not be able to properly handle (and there were a lot > of details in the test set about what these meant - see the OWL 1 > test case document) > I think Michael or someone needs to go through the current OWL 2 > design vs. the tests, and make sure we have something in the CR > results that gaurantees that every feature is implementable - the > 80% should then also be included (or something similar) for the > same reason. > So I think Ian provides a great starting place - but as the > original OWL was only differentiating 3 things, and the new one at > least 5 (Full, DL, RL, QL, EL) we have some extra > responsibilities. Also because the rationales for some of the > profiles are different than the ones in OWL 1 (particularly, where > QL and RL refer to RDBMS technology) we must show that the claimed > benefits are realizable in implementations. > So these are what I would hope we would work towards. > -JH > p.s. Would also be useful as an internal document to do what we did > with the OWL 1 criteria and identify current candidates we think > can handle what is being proposed - based on my experience from > WOWG, when we presented the Exit Criterion to the Director, he > wanted some evidence that our proposed time frames were realistic - > by having candidates we were able to seriously shorten the time (if > I recall correctly, without that we would have been forced to have > at least a 6 month CR) > > On May 20, 2009, at 11:39 AM, Ian Horrocks wrote: > >> After discussions with Alan and Sandro I redrafted the "candidate" >> CR exit criteria [1] in a way that I hope meets some of the >> concerns that have been expressed. Hopefully they are at least a >> sensible starting point for our discussion. >> >> Ian >> >> [1] http://www.w3.org/2007/OWL/wiki/CR_Exit_Criteria >> >> > > "Con un poco de semántica ya se consigue ir muy lejos" > > Prof James Hendler http://www.cs.rpi.edu/~hendler, @jahendler, > twitter > Tetherless World Constellation Chair > Computer Science Dept > Rensselaer Polytechnic Institute, Troy NY 12180 > > > > > >
Received on Wednesday, 20 May 2009 16:51:01 UTC