The curriculum is viewed in a web version which can be unfolded via Vis alt in the right-side corner (be patient, loading may take some time).
The curriculum is the formal description of your study programme. It contains information about rules and regulations governing your programme as well as information on how the programme is structured and what you will learn during your studies.
Find your Programme Structure
Find out which courses are compulsory on which semesters in the Programme structure (§3 in the curriculum, under Programme title and profiles).