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5 UX Laws
Ftts’s Law
- Big things are easier to point at
- starting position matters
- speed decrease on approach to landing
Steering Law
- Wider paths = faster movement
Hick’s Law
- takes less time to choose from fewer things
- humans are fast at binary decisions
| choices | relative time |
|---|
| 1 | 1 |
| 2 | 1.6 |
| 3 | 2 |
| 7 | 3 |
| 15 | 4 |
Miller’s Law
- capacity of working memory = 7 ± 2
- 7 digits, 6 letters, 5 words
- 2 seconds of sound
- digits->colors->letters->shapes->words
- ^ these bits can be chunked
- Chunk capacity 4 ± 1
Power Law of Practice
- completion time ~= constant*trial#
- focus on repeat performance
- different UIs for n00bs and pros
- find a way to speed up first time
References