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[p4-feedback] Feature Request: Option to generate a new URI when saving an ontology with 'Save As'

Nick Drummond nick.drummond at
Mon Apr 27 06:37:53 PDT 2009

Hi Pat,

It depends on what your method of working is. Ontologies with the same URI
are normally only a problem in the same folder.

When you do a saveAs the physical location of the currently active ontology
is changed to the last one saved and the ontology is marked as "not dirty".

You can always change the URI of the ontology before save as if you intend
to continue working on this "version".

If you want to continue working on the starting "version" you might want
some kind of checkpointing.

This would have to work without affecting the URI of the current ontology,
its saved (dirty) state or its last saved location.
It would effectively creates a copy of the current ontology with a different
URI and saves it instead.


open ont:a.owl from onts/a.owl
    edit ont:a.owl
checkpoint ont:a-v1.owl in onts/a-v1.owl
    continue editing ont:a.owl (still marked as dirty?)
checkpoint ont:a-v2.owl in onts/a-v2.owl
    continue editing ont:a.owl (still marked as dirty?)
choose to save ont:a.owl in onts/a.owl


2009/4/22 Patrick McCrae <patrick.mccrae at>

>  Dear List -
> I have observed that the 'Save As' option permits to save multiple
> ontologies with the same URI starting from a given ontology file. In
> practice having multiple ontologies with the same URI can cause problems
> with import resolution and file opening via URI.
> I am therefore wondering if it might be a useful feature to offer the
> option of generating a new URI for the ontology to save. This way it would
> be possible to create multiple ontologies via 'Save As' from the same
> original ontology without running into the troubles of having a number of
> ontologies with the same URI in the same directory.
> Any comments on this proposal?
> Best regards -
> Pat
> _______________________
>  Patrick McCrae
> <>
> CINACS Graduate Research Group
> Department of Informatics
> Hamburg University
> Vogt-Kölln-Straße 30
> 22527 Hamburg, Germany
> patrick.mccrae at
> fon: +49 . 40 . 428 83 - 23 60
> fax: +49 . 40 . 428 83 - 25 15
> _______________________________________________
> p4-feedback mailing list
> p4-feedback at
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