With the rapid evolution in computer technology, there’s an augmented need to eminently dedicate attention to the computer-aided interaction, including crucial design aspects, implementing and evaluating the interfaces that provide this type of communication. Various techniques for human-computer interaction have been used, commencing with keyboards, printers, moving on with gesture interaction, speech interaction, touch screens, eye gaze tracking and many more. Most of these techniques are still analyzed and examined if they could ensure an ease at performing given tasks, such as moving the mouse cursor, selecting menus, moving or dragging objects on the computer screen, thus helping users with disadvantages to interact with the workstation. This paper describes usability study of an existing eye-tracking system and evaluate its correctness and calculate its error percentage, which can lead us to the deduction if this system would present an efficient interaction and provide facilitation of performing certain tasks, such as reaching a goal, following a trajectory, steering through straight tunnels and steering through circular tunnels.
Human-computer interaction, eye-gaze, tracking systems, usability, Fitt’s law
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