The scientific evaluation of DemTab takes place as part of a randomized controlled trial. For this purpose, GPs and medical staff as well as patients with dementia and their care givers will use the newly developed, tablet-based application over a period of nine months. It is being investigated whether the tablet-based activation has positive effects. For this purpose, surveys are carried out and data collected during the tablet use will be evaluated. Of course, all evaluations will be anonymised and a privacy and ethics opinion will be obtained from the Charité-Universitätsmedizin and the Technical University of Berlin.