It is hard to imagine an analytst's or designer's work without specialized CASE tools like Enterprise Architect, MagicDraw or Eclipse. However, teaching the tools is not the main subject of our courses. We assume that every student is able to learn the tool by himself during everyday work (or take the training "Modeling in Enterprise Architect"). During the trainings, we concentrate on business and technical issues of the cases, not on how to draw them by means of a given tool. Exercises in modelling are usually done with pen and paper.