"Sapienza" uses an online system for surveying student evaluation on teaching (OPIS). The procedure consists of a standardized questionnaire, differentiated for attending and non-attending students as well as for teachers. In this section, the OPIS are provided as aggregate results for each Course. In specific meetings of the Board, approximately once a year, the results of the OPIS are discussed for implementing actions related to the improvement of teaching. For further details, please refer to the section BMoM.