Our colleague from the Institute of Business Informatics - Information Engineering Andreas Hutterer recently had the opportunity to work as a guest researcher at the Technical University (TU) Dortmund and to implement a research project on data spaces. Andreas Hutterer worked at the Chair of Industrial Information Management/Fraunhofer ISST, which is headed by Prof. Boris Otto and is a leader in the research field of Data Spaces. The stay at TU Dortmund University provided Andreas Hutterer with valuable new insights for his dissertation and advanced research on data spaces. Special thanks go to Hendrik van der Valk and Anna Gieß for their support, which made this successful research stay possible.