In the first two semesters, students complete modules to show that they have acquired the discipline's relevant theoretical foundations, a range of methodological tools, and a systematic overview of the subject area. The modules consist of one or more taught elements, including lectures and seminars. Examinations are generally conducted over the course of the degree programme, and require students to prove they have successfully completed one or more courses by testing those students in various ways (e.g. written tests, lab work, etc.). Examinations are usually scheduled to take place outside the lecture period during the exam weeks (Klausurenzeit).