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[protege-discussion] Changes captured into database

Tania Tudorache tudorache at
Wed Mar 21 10:47:06 PDT 2007

Hi Daniel, Markus,

The tracing of slot value changes should happen also in the current 
version. And the ChangesTab works also with the database backend, not 
only in files mode. Only the Changes ontology needs to be saved (for 
now) in file mode, but the actual ontology can be also in a database.

We are planing to do a beta build today that we'll contain the new 
ChangesTab, which works also in client-server mode. Your feedback is 
very appreciated.


Daniel Holbert wrote:
> Just wanted to add my support to this -- full traceability of all user 
> changes would be awesome. (in my case, for a db-backed multi-user 
> protege-frames project)
> Thanks,
> ~Daniel
> Markus Bohr wrote:
>>> Hi Markus,
>> Tania Tudorache <tudorache <at>> writes:
>>> This is not supported yet. The Changes project is using the RDF Backend 
>>> as you have probably figured out and currently the RDF Backend works in 
>>> file mode, not in database mode.
>>> We will release next week a new version of the ChangesTab that will work 
>>> in multi-user Protege. It won't be difficult to modify it so that it 
>>> works with a Frames database changes project and this might be one of 
>>> the first enhancements that we are going to do after we release it.
>>> The current version of the Changes Tab expects the Changes ontology to 
>>> be in a rdf and rdfs file, so converting it into a database project 
>>> won't work.
>>> Tania
>> Hi Tania,
>> Yes, that sounds very promising.
>> Are there already any ideas or plans for extending of the change management 
>> ontology to additionally capture changes applied to slot values?!
>> I guess this would be the next step towords a full traceability of user changes 
>> applied to the ontology..
>> Best wishes,
>> markus.
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