Attending classes is not compulsory - though it is strongly recommended - and there is not a prescribed order for taking exams. The student is required to develop a thorough knowledge of the subject covered by each course, including both the theoretical background and the practical skills. Preliminary tests and homeworks might be delivered during the course, but they are usually not compulsory (except if specified by the instructor). The final exam generally includes both a written and an oral test. Project work can also be assigned. The background required for each course and the exam organization are reported in the course webpage.
The grades of the exams range from 18 to 30. The maximum grade is "30 e lode" (cum laude). If a students fails, he/she must repeat the exam.
There are 3 sessions of exams, each one with two calls. Two sessions are at the end of the semesters (February-March and June-July). The third session is in September.