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[protege-owl] Managing Annotation Properties in P4

Hammond, Tony t.hammond at
Mon Nov 29 00:12:00 PST 2010

Hi Alan:

Many thanks for that explanation. I kind of wondered.

So, DC is promoted as a semantic lingua franca on the Web. And yet here it seems that Protege has effectively outlawed it and decided it cannot be applied to objects of discourse, but can only assume the inferior role of "annotating" ontologies. A laudable role certainly, but not centre stage.

Shouldn't the ontology maker be the one to make that call?



-----Original Message-----
From: protege-owl-bounces at on behalf of Alan Ruttenberg
Sent: Mon 11/29/2010 2:46 AM
To: User support for the Protege-OWL editor
Subject: Re: [protege-owl] Managing Annotation Properties in P4
On Sun, Nov 28, 2010 at 10:39 AM, Hammond, Tony <t.hammond at>wrote:

>  Hi:
> I am using P4.1.0 (build 213) on a Mac and am having problems understanding
> how to manage annotation properties. Whenever I import an ontology or an RDF
> document (RDF/XML or RDF/TTL) it seems that simple DC properties are
> automatically translated to annotation properties. Is there any way to
> override this behaviour so that I can treat DC properties as basic datatype
> properties?
Regrettably this is built in to the OWLAPI that protege uses. I submitted a
bug report and to my surprise the developer closed the bug with "wontfix",
despite it being  not part of the OWL spec. Here's the ticket.

For this and some other reasons I landed up building my own build of
protege/owlapi. Unfortunately it's a few months out of date by now, though
it might be of some use - let me know and I'll send you a pointer. If you
are up for doing your own build, I can send you the patches to the OWLAPI.

I think the protege developers could undo this if they have the will.


> Thanks,
> Tony
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