Attendance management functions mainly include leave management, leave approval management, attendance record management, attendance classification and summary management, data statistics management and attendance query. In the attendance management function module, it mainly realizes the daily attendance of students, faculty and other personnel, forms attendance records, and can at any time statistics attendance data by category, such as students, teachers, etc., or can form attendance records report by time, location, etc. Attendance management function users mainly include: business administrators, system administrators, teachers and students users