Daniel Sinnig Ashraf Gaffar Ahmed Seffah Peter Forbrig Patterns, Tools and Models for Interaction Design. 2004 conf/mbui/2004 MBUI http://SunSITE.Informatik.RWTH-Aachen.de/Publications/CEUR-WS//Vol-103/sinnig-et-al.pdf db/conf/mbui/mbui2004.html#SinnigGSF04