Brief explanation of user experience with a focus on usability and accessibility. Heuristic assessments, WCAG 1.0 checkpoints and how this fits in with real user testing.
22. A bit of science Positioning downlights so they illuminate work areas.
23. Making an exception an exception At this screen during a normal transaction the ATM would be asking you if you want a receipt. I normally say "No" which in this exception would cancel the transaction. It's not obvious it's an exception.