3. What do these screen objects afford? If you were a novice user, would you know what to do with them?

4. This is a control panel for a hotel elevator. Push a button? Nothing happens. Now what? www.baddesigns.com

5. How do you start the shower?

8. Which is better?

9. Where do you plug in the mouse? Where do you plug in the keyboard? Do the color coded icons help? From: www.baddesigns.com

10. Better Designs From: www.baddesigns.com

11. Progress indicators

12. Conceptual models Dial 9 Look for 0 Dial 0 Dial 7 Nothing happens!

13. Which are universal and which are culturally-specific?

14. Good interface metaphors?

15. The House Metaphor – Microsoft Bob, 1995