The European Credit Transfer System (ECTS) works to standardize the different European systems and rules. The core element is the so-called ECTS-credits which are assigned for individual modules.
ECTS-credits are a measure for the student workload and count towards the expected workload that an average capable student must pass, in order to pass a specific module. The workload is decided by the amount of time required to attend the courses, the courses' pre and post study requirements, preparation for the exam and the exam itself.
One ECTS-credit is the same as one 'Leistungspunkt' and represents a student workload between 25 and 30 hours.
ECTS credits can only be granted when student performance is successful. That means that an examination has at least be awarded a pass grade. Sheer attendance at a module is not sufficient to obtain ECTS-credits.
For more information on how many ECTS-credits are assigned to each course, please check the course descriptions.