The course opinion poll opens following the end of instruction. Responses are collected prior to the end of the autumn or spring semester. The exact dates may be found in the application itself.

Answers may be changed and verbal comments edited at any point during this period of time.

The course opinion poll should only be filled out following the completion of an entire course (including any form of course completion requirement including the allocation of credits, taking of examinations, etc.) so that a student's experience with that course (and teacher) is complete and his/her answers are unbiased.