Hi Thomas, thomas wrote: > Am 06.01.2009 um 01:59 schrieb Holger Knublauch: > >>> - what are your plans for support of OWL2? >> We need to distinguish between editing and inferencing support for >> OWL 2. >> >> Strictly speaking we already support editing OWL 2 ontologies - just >> add the properties such as owl:key and owl:propertyChain (or import >> a model that defines them) and use the generic form editors to use >> them. > > well, of course
I just went through the list of new features in OWL 2 and I think that property chains are really the only feature that actually requires a new editor, most of the other things are just new property names and types. From those other features we could wait and see how frequently they are really used in the real world. My impression is that a lot of the suggested OWL 2 constructs have been inspired by theoretical considerations and less so for practical reasons. Please, with any comment on OWL 2 support in TopBraid, keep in mind that OWL 2 is still work in progress. Its final release may cover a different subset of the current drafts, and we are not in a position to follow each intermediate stage of the evolving spec. I wouldn't be surprised if the official OWL 2 spec will look very different or not be finalized at all. Unlike some open-source research tools like Protege 4, our goal is not to support research and experiments but to deliver stable features, and to deliver additional low-risk features that meet our customers' requirements (such as extensive SPARQL support). >> Other options include using Pellet 2 if someone wants to contribute >> a plug-in for that (see other discussion on this list). > > i saw that, thanks. still... this seems to be a business thing and i > certainly don't expect you to make all your rationales public. > however, TBC isn't exactly a cheap product and the nice intergration > of OWL support including inference and pellets conflict resolution > facilities is one of the central selling points. while a third party > plugin is certainly a much better solution than no integration at all > it still hurts a bit that after shelling out so much money i still > have to relay on third party support for certain features. well, > that's just how i feel about it and i don't question that you have > some good reasons for your decision as well. I think you are addressing the wrong people here. TopQuadrant did not change anything, but the Pellet developers changed their licensing scheme so that it becomes far more difficult to even ship Pellet as part of our (closed source, commercial) offering. Also again, we cannot make every small fraction of our user community happy (even though we try what we can). We made the survey and there was almost zero interest in OWL 2 among our users. > could you provide some hints and information on how to write such a > plugin in a seperate post? i don't think i can do it but maybe it > isn't that hard? or maybe it just helps the process get started :-) I am reworking the documentation and will provide an example inferencing plug-in. Release date would be the same as for 3.0 final. >>> - will you add further support for quads (e.g. in the triple view)? >> The TBC support for named graphs is such that you will have a >> different base URI for each named graph. Since the Triples View can >> be filtered by base URIs you can essentially see each named graph >> individually. > > yep, but it would be nice to see at a glance if triples occur in more > than one graph(and in which ones specifically) - or in general: having > more shortcuts to graphs from the interface. Yes we may add more named graph support in the future. In the meantime I hope you know that you can mouse over the icon next to each triple on a form to see the home named graph in a tool tip? Holger --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TopBraid Composer Users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/topbraid-composer-users?hl=en -~----------~----~----~----~------~----~------~--~---
