Jie - Thanks for keeping to forward these info.! Ontology web tools
is a rapidly evolving area. Perhaps you want to consider a seminar
on a brief review of available tools, their advantages and short
comings, etc.? (preferably at a time when I am in town ;-)

--
Zhiliang
At 12:45 PM 11/11/2006, Jie Bao wrote:
>Martin Dzbor, Enrico Motta, Carlos Buil, Jose Manuel Gomez, Olaf
>Goerlitz and Holger Lewen. Developing ontologies in OWL: An
>observational study
>http://owl-workshop.man.ac.uk/acceptedLong/submission_30.pdf
>
>A very good practical survey on user-friendliness of ontology editors
>and developing process.
>
>--
>Jie Bao