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[protege-discussion] Changes captured into database

Tania Tudorache tudorache at
Fri Mar 16 15:21:52 PDT 2007

Hi Markus,

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.


Markus Bohr wrote:
> Hello,
> As I understood the Changes Tab it stores all captured user changes separately 
> from the Ontology where changes are "captured from" in files 
> (annotation_MyProject.pins, ...)
> I now tried to keep all changes performed by any user centrally in the database 
> instead of storing the changes in a file which cannot be shared by multiple 
> users.
> Thus, I simply tried to convert the "annotation_MyProject.pprj" project into a 
> Database-project, using a table name different to the one already in use for 
> the main ontology (e.g. ProtegeData_changes), but unfortunately doing so the 
> changes were not store din this new table.
> Has anyone a solution to this or found a way to store changes / annotations in 
> a DB project?
> I'm using Protege Version 3.3 (Build 372) in Frame-Based mode.
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