Political scientists, linguistis and computer scientists at the University of Konstanz developed an automatic system for the analysis and visualization of political communication. Their software – a result of the interdisciplinary BMBF-funded project VisArguea – allows to draw conclusions with respect to the deliberative quality of political discourse. One use case is the Stuttgart 21 mediation which took place in 2010 and aimed at resolving the conflicts around the railway and urban development project in Stuttgart (Germany).