“…function, physics, embodiment, and production (Ehrlenspiel and Meerkamm, 2017). Therefore, variations should be described on different levels (Albers et al, 2020). The generic variation operator is the starting point for the concretization of variations for different model elements: Functions (Albers et al, 2021), properties (Albers et al, 2021), requirements (Wäschle et al, 2021), test-cases (Wäschle et al, 2021, stakeholder needs (Kubin et al, 2023).…”