The interdisciplinary research project ZIL-KONTAKT develops recommendations for improving the information infrastructure for digital contact tracing in the context of infectious diseases on several levels (i.e., sensor technology, data analysis, data exchange and technology acceptance). The four sub-projects address several challenges along the information chain enabling digital contact tracing. The first sub-project aims to evaluate sensors for digital contact tracing in health care and manufacturing facilities. The second sub-project aims to test innovative sensor technology for contact tracing at public events and in retail. After a market analysis, the sub-project will test and evaluate various sensors and the analysis of respective sensor data, first in a laboratory and second, in an application context. The third sub-project takes a psychological perspective in examining the technology acceptance of the studied sensors and of data forwarding to public institutions. The fourth sub-project investigates the information infrastructure from a data ecosystem perspective and aims at developing requirements for a reference architecture for digital contact tracing in the context of infectious diseases.