1. Cognitive task analysis and adaptive interfaces in process control Marc Grootjen Marc@Grootjen.nl TUD: 10.100 Usability Engineering Course IN 4083

2. Introduction Measuring CTL (cognitive task load) Manipulating CTL – Design process Manipulating CTL – Real time Summary

3. Measuring CTL – The model Old situation – Time occupiedCurrent situation

4. Manipulating CTL – Design process Tools to manipulate CTL: Task allocation Interface support CTL factors 1.Time occupied 2.Complexity 3.Task switches 1 3 2

6. Manipulating CTL – Real time Adaptation model Context model Operator model Task model System model Adaptation strategy Interface adaptation Task allocation performed by:

7. Manipulating CTL – Real time Adaptation model Context model Operator model Task model System model Adaptation strategy Interface adaptation Task allocation performed by:

9. Summary CTL model CTL method Manipulation in design process and real time Adaptive interface