Automata theory is dominating in many applications developed from the concept of finite state machine (FSM). This research will consider the design of vending machine (VM), which improves the books delivery service in the academic institution, illustrated by an application. An efficiency of VM is considered as a problem. In order to improve the efficiency, automata theory depends on the design of the FSM and visual automata simulator (VAS) are used as a method. Finally, the paper will construct FSM that uses fewer states. As a result, we will find that we can improve the efficiency and design cost of the VM.
General TermsAutomata theory and FSM are considered as our general terms. Throughout this research, VAS is also considered for graphical representation.