is a model of human movement in human–computer interaction and ergonomics that predicts that the time required to rapidly move to a target area is a function of the distance to and the size of the target. ·
http://en.wikipedia.org/wiki/Fitts%27s_lawis a model of human movement in human–computer interaction and ergonomics that predicts that the time required to rapidly move to a target area is a function of the distance to and the size of the target. ·
http://en.wikipedia.org/wiki/Fitts%27s_law