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[protege-dev] Problems saving an OWL-File with Protege 3.5

Csongor Nyulas csnyulas at
Mon May 4 14:18:35 PDT 2015

Hi Dennis,
This is more like a question for the protege-user mailing list. In any 
case, here are a few ideas...

There may be different reasons for not being able to save your ontology 
correctly. Here are a few question to try to debug the cause.
- First, it would be good to know what format (serialization) you are 
trying to save your ontology into.
- Are you getting any exceptions on the console?
- Is it possible that you are trying to modify an OWL 2.0 ontology 
(which was created by Protege 4 or 5, for example). Protege 3.5 supports 
only OWL 1.1.
- What is the unexpected result that you have observed? You say: "some 
metadata  elements  are incorrectly displayed". Can you give us more 
detail? What do you see displayed, and what did you expect instead?
- Can you maybe share the ontology with us?

Although the latest Desktop Protege version (5.0 beta) does not have 
SRWLTab, yet, but it has a Rules view (you can find it under Windows -> 
Views -> Ontology views) that can be added to any tab, and which allows 
you to write SWRL rules. Many reasoners (such as Hermit and Pellet) take 
into consideration the SWRL rules as well, when they are executed. So if 
you are not using special build-ins that are not supported by the 
reasoners available in Protege 5, I would definitely give it a try.


On 03/06/2015 01:45 AM, Dennis N. wrote:
> Dear all,
> I am a Student at the University of Applied Sciences in Hannover.
> For my bachelor-thesis I need to choose an Ontology-Editor for an expert
> system using OWL+SWRL for an open source license.
> I am testing the Ontology from my project in protege 3.5. Protege 3.5
> imports the Ontology correctly. When I save the Ontology as an owl file,
> some metadata  elements  are incorrectly displayed.
> The problem can be the swrl tab or Protege 3.5 itself.
> Are there some other Plug-Ins using SWRL for Protege, that I could use for
> my bachelor-thesis ?
> Can I use the SWRL Editor for Protege 3.5 or another SWRL Editor that could
> solve this Problem?
> I'm a bit desperate, because I find no solution.
> Could You help me about that problem?
> Best Regards,
> Dennis Neuwirth
> --
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> Sent from the Protege Developer mailing list archive at
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