The "EON2002 Experiment on Evaluation of Ontology Engineering Environments" was initiated during the OntWeb3 meeting by the participants of the Special Interest Group on Tools (SIG3). The general question was how to evaluate ontology related technologies. To brake down this rather complex task into a pragmatic one the group decided to focus on ontology engineering environments (OEE) as a starting point. These tools are rather common and widely used by the Semantic Web Community and some of the participating members were even tool provider themselves.

Submissions to this experiment should answer the following items with respect to the used OEE:

• What modeling decisions need to be considered during the design?
• What limitations occure? ... and why?
• What problems arise due to using different representation languages for export?
• What are the lessons learned from modelling this experiment?

Below you will find all submissions to the experiment. We provide (i) names of used tools, (ii) names and affiliations of authors, (iii) zip-files containing (a) documents that describe the modelling process and (b) exported ontologies and (iv) mail-addresses of authors.

We thank all participants for their efforts and are looking forward to having fruitful discussions at the workshop!

Jürgen Angele and York Sure