 Admission policies differ among the departments.While students are chosen by the quality of their school degree and their extracurricular activities for courses such as industrial engineering and management (27% of admissions in 2008), other departments do not preselect for their courses, including physics, informatics, and meteorology.All courses require a minimum number of passed exams, called or orientation assessments, in the first three semesters before students are allowed to complete their course.