The dissertation project explores the epistemic and didactic potential of design in the context of the digital transformation and the interpersonal influence of technological applications. Approaches of critical and speculative design, participatory technology assessment and digital ethics flow into theory-generating empirical applied design research in order to answer the central question of how we want to live together in increasingly digitalized living environments. Design practice is thereby made accessible to a broad field of discussants in the course of deliberative formats. In this way, the ethical implications and questions that design integrates in the context of digitalization and technological applications are both brought to the attention of practitioners and carried into the social discourse through the design of discussion contributions.