Scenario-based usability assessment of ISDN terminals and resulting improvements
M. Elixmann, Th. Falck, St. Gamm, A. Kerner · 2005
We describe a scenario-based procedure for usability assessment of ISDN feature terminals, demon strate its application to a typical terminal and discuss the resulting improvement of terminal design. The assessment is based on two scenarios which are created with regard to the user model.