Review of Protege and Protege-OWL

This is a review of Protege and Protege-OWL.

The article is more or less fine. Some small points are listed below:

I think the claim that Protege has become the default open-source editor is a bit strong. Perhaps you should change this to “it’s a widely used open source editor”.

At this time, Protege 4 does actually have some simple editing support for SWRL rules, and as far as I know, in contrast to Protege 3, it provides proper DL Safe Rule reasoning support via Pellet.

You might also want to include a link to the OWL API at
http://owlapi.sourceforge.net

You can link to the OWL Syntaxes article at:
http://ontogenesis.knowledgeblog.org/2010/01/22/owl-syntaxes/