The four courses in your pre-master package are based on the defiences that you have to work on to be eligable for the master program at the Department of Industrial Design. These courses will help you to improve your skills and knowledge in the expertise areas that you are still deficient in. In general, you need to demonstrate competence in all expertise areas on a sufficient level before you enter the master program.
CSA-ID will register you for the courses in your package before the start of your program.
The courses that you need to follow, depend on the package that the Departmental Admissions Committee assigned to you, based on your your background: