UseCase3001Implementation – Enroll in Subject

Initiating actor: Student

Other actors: None

Description: Student enrolls in a subject offered by their faculty.

Scenario:

1. System displays Student Menu.

2. Student selects Enroll in Subject.

3. System lists students → selects student ID.

4. System lists available subjects → selects subject.

5. System checks enrollment:

   SELECT * FROM Student_Subject WHERE Student_Id = ? AND Subject_Id = ?;
   

6. If not enrolled, system inserts:

   INSERT INTO Student_Subject(Student_Id, Subject_Id, Status, Enrollment_Date)
   VALUES (?, ?, 'ENROLLED', CURRENT_DATE);
   

7. System confirms enrollment.