During encounter with the Automated Teller Machines (ATMs), humans face up various choices and options, which leads them to make a number of decisions. During this process, accuracy, integrity and speed are the critical elements. The objective of this study was to design a simple human machine system, which would both incorporate these elements and enable humans to use their full capacities while not over demanding or overloading. The design eliminates the information loss (equivocation) and gain (noise) and augments the process in terms of accuracy, integrity and speed.