Jonathan, The blog covers it. Also I better appreciate the intent of essential... create instances not classes. that is right on. I haven't used the export to OWL, but I'll investigate. I needed a better sense of your OWL support, so I can talk through with my client (they're OWL oriented :) Anyway ...

Thanks for the reply. Agree that 3.x is a going concern and viable. I understand the need for that 4.x to support DB and be multi-user. Is OWL support on your road map? I know there are differences between OWL and Frames syntax, approach and capabilities so understand it's not trivial. RDF tools see...

Sorry if this question has been asked before. Searching for "Protege 4.x" or "Protege latest version" are invalid searches because the words are too common. Anyway I'm wondering about plans for 4.x / OWL support. We currently run 4.x for data management metadata ontologies, we su...