Apple is a fantastic case study for a topic like this and I would start off by comparing the new Shuffle (3G) versus the prior version.
| Controls | The 2G Shuffle | The 3G Shuffle |
|---|---|---|
| Primary Input | 5 buttons (press or press-hold variations) | 3 buttons (click, hold, or multiple click variations) |
| Feedback Method | Visual (LEDs) | Visual (LEDs), Audio |
Scaling the controls to the content is extraordinarily important and the problem here is that for 10 functions, one product uses 5 buttons and the other uses 3. Read the rest of this entry »
