The implementation of a remote tower project requires a set of concepts on various topics such as training and transition. The general operational concept lays the foundation on which all other concepts are built. It describes the detailed structure of the systems and their use as well as subsequent operation. The operating concept thus answers the “what” and “how” of the remote tower solution. DAS analyses the current traffic and operational situation at the airport in order to consider individual adjustments for remote operation. This allows the operating phases to be optimally defined and safe flight operations to be guaranteed.