22. Moore’s Law
- in two more years our device will be faster, smaller and still powerfull
Fitt’s Law
- how long it takes to move from a starting point to a final position
Hick’s Law
- time it takes for the user to make a decision from possible choices
23. Magic number 7
- human brain best remebers chunks of info in 7
Testler’s Law
- a point where you can’t simplify any longer
Poka-Yoke principle
- help the user not to make a misstake
28. Resources
• Designing Interactions, Bill Moggridge
• Designing for interaction, Dan Saffer
• About Face, Alan Cooper
• The inmates are running the asylum,
Alan Cooper
• Interaction Design,
Yvonne Rogers, Helen Sharp, Jennifer Preece