Have you looked at Rubymine ? I have used its model diagrams in the past to get an overview of models, and it also has class diagrams. http://www.jetbrains.co

Have you looked at Rubymine ? I have used its model diagrams in the past to get an overview of models, and it also has class diagrams. http://www.jetbrains.com/ruby/webhelp/viewing-model-dependency-diagram.html http://www.jetbrains.com/ruby/webhelp/viewing-model-dependen...