Changes between Initial Version and Version 1 of UC3001

Timestamp:

02/03/26 20:54:31 (3 weeks ago)

Author:

216009

Comment:

--

UC3001

@@ +1 @@
+= UseCase3001 – Enroll in Subject
+
+**Initiating actor:** Student
+**Other actors:** Professor
+
+**Description:**
+A student wants to enroll in a subject offered by their faculty. The system checks prerequisites, enrollment limits, and records the enrollment in the database.
+
+**Scenario:**
+
+1. Student logs into the system and selects “Enroll in Subject.”
+
+2. System displays a list of subjects available for their faculty:
+{{{
+SELECT s.Id, s.Name, s.Semester, s.Credits 
+FROM Subject s 
+JOIN Faculty f ON s.Faculty_Id = f.Id
+JOIN Student st ON st.Faculty_Id = f.Id
+WHERE st.Id = :student_id;
+}}}
+
+3. Student chooses a subject and clicks “Enroll.”
+
+4. System checks if the student is already enrolled:
+{{{
+SELECT * FROM Student_Subject
+WHERE Student_Id = :student_id AND Subject_Id = :subject_id;
+}}}
+
+5. If not enrolled, system inserts enrollment record:
+{{{
+INSERT INTO Student_Subject(Student_Id, Subject_Id, Status, Enrollment_Date, Absences_Count) 
+VALUES (:student_id, :subject_id, 'ENROLLED', CURRENT_DATE, 0);
+}}}
+
+6. System confirms enrollment and updates student's schedule.