Pointing Task

A fundamental human-computer interaction task in which users move a cursor (via mouse, touchpad, finger, or other input device) to click or tap on a target. Pointing tasks are governed by Fitts' Law, which predicts that movement time increases with distance to the target and decreases with target size. In accessibility research, pointing tasks are used to quantify motor impairments by measuring not just speed but also movement smoothness (jerk), trajectory deviations, pauses, and accuracy. Analyzing pointing performance can inform personalized interface design—such as determining appropriate minimum target sizes, movement gains, or the need for input filtering—based on an individual's motor capabilities.