Healthcare is becoming increasingly digitalized. Current infrastructural projects in Switzerland such as the electronic patient dossier are paralleled by rapid developments of eHealth applications, which support or even assume functions traditionally held by licensed health care professionals. One prominent example are Computerized Diagnostic Decision Support Systems (CDDS), which collect data on patient characteristics, suggest potential causes, and propose next steps in the diagnostic workup. While CDDS were originally intended to support physicians, many so called "sympotm checkers" now provide an interface to be used by patients and recommend action, such as seeing a doctor or attempting self-care. While studies investigated satisfaction with CDDS, many questions on the micro-, meso- and macro-level have not yet been addressed, impeding an informed conversation of intended and unintended consequences of their widespread use.On this page, you find information on a study that adresses these questions and the investigators behind it.