in the study dean's office is happy to help with any individual questions.
There is a faculty wide course evaluation organized by the study dean's office. Students are invited per mail to give feedback on their attended courses via an online survey and you will receive a detailed results report. Both the questionnaire and the results reports are available in English. Detailed information on what to do and when are sent via mail at the beginning of the semester (the mails include a short summary of the contents in English).
For a more detailed feedback on your course you can request a Teaching Analysis Poll. TAP is a qualitative midterm feedback from your students collected by two employees of the study dean's office in absence of the teacher. Detailed information can also be found in the aforementioned mail at the beginning of each semester.