Accot-Zhai Steering Law: Implications for UI Design
AccotZhai Steering Law Implications for UI Design
Accot-Zhai Steering Law: Implications for UI Design
katerina
The Accot-Zhai Steering Law (discovered by HCI researchers Johnny Accot and Shumin Zhai, but also known simply as the Steering Law) is a corollary of Fitts’s Law. The Steering Law is an equation that predicts the efficiency of very common interactions; it describes the particular case of path-steering tasks — that is, when a user must move a pointer through a path with boundaries or a “tunnel.” The equation is:
T is the overall movement time, a and b are constants, A is the length of the tunnel, and W is the width of the tunnel.
Don’t worry, most UX professionals will never need to use this equation: the main actionable insight is that long, narrow tunnels take more...
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accot-zhai steering law: implications for ui design
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accot-zhai steering law: implications for ui design
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accot-zhai steering law: implications for ui design
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Accot-Zhai Steering Law: Implications for UI Design | Scrolling and Attention
Scrolling and Attention
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In many ways it’s comforting to see that so many of the usability problems documented through two decades of testing with Western users repeated in our new study in China. First, it shows that Chinese people are people and not some kind of superhumans who violate the laws of user interface
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Many of the websites we tested in Studies 3 and 4 included the option to use current location to begin a search. The majority of study participants allowed access to their current location when the site requested it. Some desktop users did not notice the browser popup requesting their location
