Drivers may lose their driving license due to dunk or other reasons. They have to go through a serial of courses before they get their driving licenses back. This application is mainly used by the teachers and staffs of a company. The staffs manage the drivers, courses, teachers, invoices, and communications among them. The teachers see what they need to teach, and write drivers’ performances in class. Finally the company sends a report on the driver’s courses to the government. And the government decides whether the drivers can get their driving licenses back.