2. Utah School of Computing Lecture Parts CS5540 HCI Rich Riesenfeld Fall 2004

3. Utah School of Computing Examples

4. Utah School of Computing slide 3 Student Name Server Fall 2003 When Should Interface Take Control? Safety -Elevator: Don’t use in case of fire -Should this be enforced automatically? Abels Hus -Locked with cards on exit -Safe?

5. Utah School of Computing slide 4 Student Name Server Fall 2003 Decision Examples 2-ended card lock at Oslo SAS Plaza -Open -Close (!)  Handy when getting paper in morning, etc.  Security Risk

6. Utah School of Computing slide 5 Student Name Server Fall 2003 Communicating State Hotel Service -Room Service: How long will it still take  Give an indicator on TV?  They provice info for billing, etc. -Restaurant wait? -Wait at desk for checkout? How busy -Wait at Concierge. How busy?

7. Utah School of Computing slide 6 Student Name Server Fall 2003 Communicating State How to signal room occupancy for maid service? -Should I dial a number when I what room service, or work thr interactive TV?

8. Utah School of Computing slide 7 Student Name Server Fall 2003

9. Utah School of Computing slide 8 Student Name Server Fall 2003 Misc Credit card machine that effectively tells the user how to hold the card -Make on that works both ways, like automobile keys

10. Utah School of Computing slide 9 Student Name Server Fall 2003 Misc B777 center seat console -Identical left and right controls -Mix-ups are easy -Color code, or something! Gas gauge in car -Modern ones have arrows on gauge indicating side of gas tank -Need picture

11. Utah School of Computing slide 10 Student Name Server Fall 2003

12. Utah School of Computing slide 11 Student Name Server Fall 2003

13. Utah School of Computing slide 12 Student Name Server Fall 2003

14. Utah School of Computing The End