Attendance management functions mainly include classroom teaching attendance management, activity attendance management, personnel attendance management and so on. In the attendance management function module, teachers and students mainly implement leave management, including leave application filling in, leave approval, leave inquiry, leave statistics and so on. The system administrator mainly realizes attendance record management, including attendance information input, attendance information query, attendance data statistics, attendance summary and other functions, as well as attendance classification management. Business administrator mainly realizes audit function, but also realizes attendance information query, attendance data statistics, attendance summary and other functions.