When hospitals decide to merge or to establish collaborations, this always has far-reaching implications for the information infrastructure of the hospitals involved. The first step is to merge the patient files. Only after a time will you then consolidate, step-by-step, the information systems themselves. This was also the method chosen for the fusion of the ZOL Genk hospital in Genk with the Maas & Kempen hospital in Maaseik. Using the Workflower app “MPI Matchmaker”, this time-consuming process could be automated to a large extent.