Target-Pointing Movement Performance for HCI Design

Abstract

one of the most important factors for human-computer-matching is HCI design, which is based on the characters of human target-pointing movement. The writer investigates the target-pointing movement where target width and index of movement difficulty varies as does the approach angle. Through the study of reaction time and accuracy of subjects there are some conclusions: approach angel significantly affects the character of target-pointing movement, with 0° approach angle, subjects have worst movement time and throughput, while with 60° approach angle, subjects have shortest movement time and with 90° approach angle, subjects have best throughput which is about the same as 60° angle, different muscle combinations and different effective widths would be responsible for the differences, the width has the same influence on the characters of human target-pointing movement at every approach angle, and the movement time will be more sensitive to width with the bigger index of difficulty. The conclusions can be used to instruct HCI design.