The internship is mandatory, read the study plan and check the CFUs to be acquired and the corresponding hours. If you have a temporary or permanent employment contract you can earn credits for internships and apprenticeships at the institution or company where you work, as an exception from what is provided in the educational offerings. If, on the other hand, you are a freelance professional or self-employed, you will have to demonstrate any registration with a professional body and declare, under your personal responsibility, the specific activity carried out. To obtain authorization you must write to Daniele Rolando attaching appropriate documentation. If, on the other hand, you are a retired student you can arrange for an internship at the DAFIST Department libraries.