In the PlaTFoRm project, Verified Systems investigates in a joint project with fortiss in Germany as well as D-Risq Ltd and Newcastle University in the UK how errors that can compromise the robustness of a safety-critical system (e.g. in safety mechanisms) can be found cost-effectively and – as required, e.g., in DO-178C – at an early stage of development. To this end, we develop a seamless automated process, starting from the requirements at system level through to the heuristic generation of test cases.