the whole architecture CITYSYS as a central platform over all other systems. In order to achieve the overall benefits of SmartCity, it is necessary for the solution to be able to manage the interaction of the domain control subsystems, to ensure the exchange and processing of data across the city. The subsystem interaction is provided by the orchestration of the services and individual subsystems, which will automate multiple scenarios across different domains, e.g. public lighting associated with waste management. As part of the solution, the flexibility of the solution has to be prepared for the different scenarios of responsibilities, legislation and competency settings and technologies used. And that’s what CitySys wants to fulfill.