It's really hard to design products by focus groups. A lot of times, people don't know what they want until you show it to them.
-- Steve Jobs, 1998
Read the fascinating history of Wearable Computing, told by its father, Steve Mann
Read Steve's chapter !
Andres, Robert. O. and Hartung, Kenny. J. (1989): Prediction of Head Movement Time Using Fitts' Law. In Human Factors, 31 pp. 703-713.
» Fitts's Law: [/encyclopedia/fitts_law.html]
It's really hard to design products by focus groups. A lot of times, people don't know what they want until you show it to them.
-- Steve Jobs, 1998
Read the fascinating history of Wearable Computing, told by its father, Steve Mann
Read Steve's chapter !