The conference series "Modellierung" provides a forum for all research communities that work on various aspects of modelling within the German Informatics society (GI). It is the leading conference of its kind within German speaking countries. In 2020, "Modellierung" takes place from Feb. 19th to 21st in Vienna. Together with Prof Jörg Desel, Ulrich Frank chairs the consortium, which provides doctoral students a forum to discuss their projects with scholars in order to receive valuable feedback for their work.