The steering law in human–computer interaction and ergonomics is a predictive model of human movement that describes the time required to navigate, or steer, through a 2-dimensional tunnel. The tunnel can be thought of as a path or trajectory on a plane that has an associated thickness or width, where the width can vary along the tunnel. The goal of a steering task is to navigate from one end of the tunnel to the other as quickly as possible, without touching the boundaries of the tunnel. A real world example that approximates this task is driving a car down a road that may have twists and turns, where the car must navigate the road as quickly as possible without touching the sides of the road. The steering law predicts both the instantaneous speed at which we may navigate the tunnel, and the total time required to navigate the entire tunnel.
The steering law has been independently discovered and studied three times (Rashevsky, 1959; Drury, 1971; Accot and Zhai, 1997). Its most recent discovery has been within the human-computer interaction community, which has resulted in the most general mathematical formulation of the law.
Read more about Steering Law: The Steering Law in Human–computer Interaction, Derivation of The Model From Fitts's Law, Modeling Steering in Layers
Famous quotes containing the words steering and/or law:
“Behind the steering wheel
The boy took out his own forehead.
His girlfriend’s head was a green bag
Of narcissus stems. “OK you win
But meet me anyway at Cohen’s Drug Store
In 22 minutes.””
—John Ashbery (b. 1927)
“I wish my countrymen to consider that whatever the human law may be, neither an individual nor a nation can ever commit the least act of injustice against the obscurest individual without having to pay the penalty for it. A government which deliberately enacts injustice, and persists in it, will at length even become the laughing-stock of the world.”
—Henry David Thoreau (1817–1862)