5 th International Workshop on Model Driven Development of Advanced User Interfaces (MDDAUI 2010) Bridging between User Experience and UI Engineering Proceedings April 10, 2010 Atlanta, Georgia, USA organized at the 28 th ACM Conference on Human Factors in Computing Systems (CHI 2010) Editors: Jan Van den Bergh (Hasselt University, Belgium) Stefan Sauer (s-lab, University of Paderborn, Germany) Kai Breiner (Fraunhofer IESE, TU Kaiserslautern, Germany) Heinrich Hußmann (University of Munich, Germany) Gerrit Meixner (German Research Center for Artificial Intelligence, Germany) Andreas Pleuss (Lero, University of Limerick, Ireland)