You can choose the courses for your APSP from the list of courses suggested
in the curriculum of your degree programme. For compulsory courses you need to
consider the pre-requisites (courses
that have to be taken before others).
This means that, in order to add certain courses to your APSP, it is necessary
to have included the pre-requisites first.
Pre-requisites are listed in the curriculum.
Therefore, before you make your APSP, you should read the section related to
your programme curriculum in this Student Guide.
In any case, the system running the operations prevents you from making
an irregular APSP in which the pre-requisites are not respected. A
warning message tells you which courses must be inserted before others.