The purpose of this research is introduce the design of an improved graphical user interface (GUI) and
verifies the operational efficiency of the proposed interface. Until now, clicking the toolbar with the
mouse is the usual way to operate software functions. In our research, we designed an improved
graphical user interface e a tool ball that is operated by a mouse wheel to perform software functions.
Several experiments are conducted to measure the time needed to operate certain software functions
with the traditional combination of “mouse click þ tool button” and the proposed integration of “mouse
wheel þ tool ball”. The results indicate that the tool ball design can accelerate the speed of operating
software functions, decrease the number of icons on the screen, and enlarge the applications of the
mouse wheel