Students who wish to change programs can do so by applying to the new program. The application fee will still apply and you will be required to meet the entrance requirements for that particular program. If you meet these requirements and there is space in the program, you may be offered a seat.
To graduate from a program, you must meet specific academic requirements, including the successful completion of particular courses. Some of the courses you have taken in a previous program may count for credit in a different program, but they will be subject to scrutiny to ensure they are valued as equivalent, as specified by the particular program.