The version of the Examination Regulations for the Bachelor of Information Science valid since winter semester 2017/2018 stipulates that you must complete a total of 15 hours as a test subject in the form of participation in experiments as part of your degree programme.
Please enrol in the GRIPS course "INF BA M-10.2 (external link, opens in a new window)" for this purpose. There you will receive all the necessary information and can provide proof of the hours you have completed as a test subject.