### administrator
  - Student
  - Teacher
  - Subject
  - Schedule
  - Class room
  - User

  - Attendance
  - Exam
  - Exam result
  - Payment info
  - payment receipt

### teacher
  - Student
  - Teacher / Info
  - Schedule
  - View class room

  - Attendance
  - Exam
  - Exam result
  - Notice to student and Administrator

### student
  - View Schedule (4月21)
  - View Notice
  - View Exam Results

### common 
  - login / logout