Mühlbach, L.L.MühlbachRunde, R.R.RundeReiner, W.W.ReinerMichel, T.T.Michel2022-03-042022-03-042011https://publica.fraunhofer.de/handle/publica/227110The Fraunhofer Heinrich Hertz Institute (HHI) has developed innovative touchless user interfaces for two exhibits which were shown at the Expo 2010 in Shanghai. The first exhibit presents a game for technical solution illustration for the cleaning of rivers. The second exhibit presents information about German products through interactive installation. The two systems were pre-tested with Chinese test persons in terms of "usability" and attractiveness.de621journal article