The Japanese automotive supplier Toyodenso Co. develops and manufactures more than 4,000 types of electrical components. One such group of components developed by Toyodenso are Electronic Control Units (ECU). These devices enable the communication between one or more electrical systems in the vehicle, such as electric windows and seats.
Up to this point, Toyodenso had been testing the functions of electric window and seat ECUs by manually pressing and pulling the switches. Because it was impossible to manually conduct exhaustive tests with an extremely large number of test cases, they required the functional verification to be executed in an automated manner. They needed a viable solution that would ensure an efficient test process, even with a limited workforce and without hindering current testing.