A clutch engagement control device controls the engagement of a forward clutch and reverse clutch in an automatic transmission connected to an engine in a vehicle. The method includes displaying a canvas object, displaying a toolbar object, displaying a menu object, and displaying a working folder tabs object that displays in one mode service independent building blocks that may be placed onto the canvas to design a service graph. A first angle between the first surfaces of each of the pair of the side surfaces is larger than a second angle between the second surfaces of each of the pair of the side surfaces.