If you failed the core subject(s) including Mathematics (CM1111) last year, you have to re-take it this year. Get a course "Add/Drop Form" and approach the Course Leader to get an approval. If there is a crash with others, you have to consider to swap it or drop it because you have to pass the failed subject(s) first. Please note that if you fail the
subject(s) again, your study will be terminated.

Also observe the availability of courses. The normal flow of study can be found on the Student Notice Board. System Analysis & Design (DCO2420), was offered in Semester B last year, will be offered in Semester A. Fundamentals of Software Engineering (DCO2410) will be offered to Part-time students in Semester A and Full-time students in Semester B.

Finally, "Changed Section" is usually not approved even there is/are place(s). They are primarily designed for students who need to re-take.