1. Focus plus context screens Patrick Baudisch, Nathan Good, and Paul Stewart UIST 2001, November 11 th 2001

2. Hardware –At least one hi-res display –At least one larger low-res display Software –scaling of the display content is preserved –resolution varies

3. Contents 1. What it is 2. How it works 3. What it is good for (video) 4. Software 5. Evaluation and conclusions

4. How to build it?

5. Setup

6. Seamless integration of displays a b

7. Context No reflections on focus screen Focus

8. What is it good for?

10. How does it work?

11. The scaling software Display image on two display units of different resolution –Similar to two-headed display –but display units are overlapping –and one of them has to be scaled down (Related work “Flux capacitor” [Dr. Emmett Brown, 1985])

12. Linux/VNC app focus context input server clip scale viewer

13. Image viewer context Photo shop scale ACDsee.gif mouse fork input focus

14. Evaluation

15. focus plus context screen Visualization Same # of pixels fisheye 5 5 overview plus detail 4 4 Display technology homogeneous resolution 4 4 wall-size, hi-res display 4 4

16. Evaluation Field study –12 professionals, 2 gamers –Nobody uses overview plus detail –A list of tasks for the experiments 1 st exp: large static documents –Task completion: 21% and 36% faster 2 nd exp: dynamic dual attention task –Error rate only 1/3 of two-monitor setup

17. What we learned We thought: Chip designers need it We learned: Real strength is dynamic content –Have unexpected context information –Two monitoring tasks at the same time

18. Try it out! Demo: Tuesday 5.15Demo: Tuesday 5.15

19. END