An experimental evaluation of input devices for pointing work

We have studied the pointing device operation through experiments on pointi ng time, accuracy, mental work load, and psychological easiness to operate. As a result, there was a difference in accuracy, pointing time and the men tal work load with different amounts of movement of the pointing device and amounts of movement of the pointer on the screen. The cause is that it is difficult to have eye-hand coordination. (C) 1999 Elsevier Science B.V. All rights reserved.