1. Design of user interfaces Matthias Rauterberg http://www.ipo.tue.nl/homepages/mrauterb/rauterberg.html

3. What is User-System Interaction about? system user Working domain Working system Goal: Actual Performance => Desired Performance

4. Interface Design or Interaction Design? userinteractionsystem

5. Challenges of USI research userinteractionsystem cognitionperception emotionaction architecturefunctionality input/outputdata structure effectiveness efficiency satisfaction ?

6. User-product relation user product manualinterface

7. implemented functions perceivable user interface forms DESIGNER intended semantic USER perceived semantic How to relate function and form, so that DMM == UMM ? DMM := designer’s mental modelUMM := user’s mental model

8. Two General Design Strategies 1. 2.