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[p4-feedback] P4 and OWL 1

Stefano David sdavid at
Tue Apr 7 05:01:42 PDT 2009

Hash: SHA1

Hi nick,
Thank for your quick response.

Nick Drummond wrote:
> You can also create allDisjointClasses manually (using multiselect).
> They are nice because they are much more compact, but you are right this is
> an OWL 2 construct and breaks backwards compatibility.
I know, AFAIK AllDisjointClass is just syntactic sugar. I also prefer it
over single pairwise disjoint axioms, but that's a problem when you need
to use OWL 1. :-)

> I've implemented this as a refactor action.
> This gives the user more flexibility as you can transform existing
> ontologies (so obviously if a plugin doesn't do the "correct" thing for your
> circumstances it is still possible to transform).
...and thanks for the quick "fix".

Let me just ask a further question. I think there are some other
cunstructors that break backwards compatibility. I think it is something
about nominals, but can't find the owl file in which it happened. As
soon as I have a bit of spare time I will investigate further and let
you know.

The question is: Does your implementation take also this into consideration?

Thank you again, I really appreciate the time you took for me!

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