Co-creating value-added services requires new technical capabilities, mostly enabled by new digital technologies. Thus, interconnectivity, scalability, modularity, and interoperability are key building blocks of platforms and, consequently, need to be viewed as new design imperatives aiming at the effective reuse and integration of technical functions (e.g., authorization or display functionalities). Reuse and integration especially require new capabilities. In this context, the inside-out and outside-in openness of platforms play a key role and become a strategic mandate.