It is possible to apply to switch courses once you have completed a semester or more of university study. There are no guarantees that your application will be approved. You will need to have met the entry requirement for your desired course. Selection is based on your academic performance and you will be competing for entry with other applicants.
Specific Course Switching criteria can be found by Searching Offerings for the course you want to change to and then checking the Admission Criteria tab.
If you are uncertain about your options, please contact the Future Students Centre on +61 1300 222 888