| | 1 | User (**id_user**, username, password, email, created_at) |
| | 2 | Administration (department) |
| | 3 | Teacher (id_teacher, hire_date, department) |
| | 4 | Rating (id_rating, rating, explanation, id_teacher) |
| | 5 | Subject (id_subject, name, description) |
| | 6 | Course (id_Course, num_of_classes, created_by) |
| | 7 | Class (id_class, start_time, end_time, duration, teacher_id) |
| | 8 | Student (id_student, progress_score) |
| | 9 | Enrollment (id_enrollment, id_student, id_Course, status, en_date) |
| | 10 | Assignment (id_assignment, description, score, deadline) |
| | 11 | Submission (id_submission, id_student, id_assignment, submitted_at, progress_score) |
| | 12 | Attendance (id_attendance, id_student, id_class, attended) |
| | 13 | Subject_Course (id_subject, id_Course) |
| | 14 | Course_Assignment (id_Course, id_assignment) |
| | 15 | Course_Class (id_Course, id_class) |
