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[protege-discussion] Protege & DataMaster

Csongor Nyulas csongor.nyulas at
Fri Apr 18 11:09:26 PDT 2008

Hi Gudo,

The current implementation of DataMaster very much builds on its 
predecessor DataGenie, which was written for Protege-Frames. Since 
Protege 4.0:
- uses a different, pure OWL API,
- has a different plug-in architecture than Protege 3.x,
- does not have an implicit mechanism to deal with RDF ontologies (like 
Relational.OWL, which is currently used by DatMaster)
it seems that porting DataMaster to Protege 4.0 would basically imply to 
rewrite it, where the only thing that could be reused is its logic. This 
work is estimated to take about 3-4 weeks to be completed. We realize 
that DataMaster in Protege 4.0 would be a very useful thing, and we 
would be happy to implement it, but we did not have it in our current 
plans because do not have the necessary resources for it.

Until DataMaster will be ported to Protege 4.0 you can still import your 
data/DB structure in owl using Protege 3.3.1 or Protege 3.4 beta, and 
then open the owl file with Protege 4.0 to use the Protege 4.0 features 
on the imported concepts.


Gudo Rangu wrote:
> Hi All,
> I have just managed to connect from Protege 3.3.1 to MySQL DB using 
> DataMaster. I realize however that the latest Protege 4.0 supports a 
> good number of things like reasoners, OWL-DL etc which the other 
> Protege versions do not do.
> How long is it going to take for DataMaster to be compatible with 
> Protege 4.0
> Thanx.
> Gibson.
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