Fitts' Law, Steering Law

Übung Mensch-Maschine-Interaktion 1, Wintersemester 2008/09


Topics Today

Fitts' Law

Fitts' Law
What is Fitts' Law?

Fitts' Law

MT = a + b * log2(A/W + 1)

Defining Target Width

Target width originally for 1D targets. How is it defined for 2D targets?

Law of Steering (Steering Law)

steering law

Law of Steering (Steering Law)

MT = a + b *
( A / W )
for straight tunnels of constant width

MT = a + b * ∫C ds / W(s)
for curved tunnels with varying width W(s)

Consequences for UI design

Hick's Law (Hick-Hyman Law)

T = b * log2(n+1)

Sources & Recommended Reading