1. A system for at least one of determining and processing state information concerning a water supply grid, the system comprising: at least one central data processing device; a control system; at least one integration device; one information management system; and functional units, wherein: the functional units obtain and provide state information; a respective functionality of the functional units is integrated into the control system by means of the integration device such that a functionality of the control system is extended by the functionality of the respective functional unit, and at least one of individual functions and the functionality of the functional units is accessible from the integration device; the information management system interacting with the integration device, the control system and the functional units acts as central database and provides a continuous data and information exchange between the control system and the functional units, the functional units being configured to access data and information of other integrated functional units; the functional units comprise an action planning and scheduling unit configured to perform an operation of optimally actuating pumps for producing flow and pressure in the water supply grid, a prediction unit configured to provide a locally resolved estimate of future water consumption in the water supply grid, an alarm management unit configured to at least one of deliver fault reports from pumps and/or valves and report a leak in a line section or a grid section, and a visual display unit comprising functional options for presenting geographical data and for visualizing various states of the system, the visual display unit being configured to communicate with the respective functional unit and an application thereof, transmit selections of a user to the application, transmit responses and results from the respective application to the user, and visualize temporally and locally conditioned information and data; the estimate of the future water consumption serves as a basis for the optimal actuation of the pumps performed by the planning scheduling unit; and at least one of (i) the fault reports from pumps and valves and (ii) the report on a leak are taken into account in the pump actuation optimization operation and reacted to accordingly, such that faulty pumps are no longer actuated, areas which contain a faulty pressure regulation valve, in particular if the valve is closed or off and can no longer be controlled, are fed with a different control strategy than before, and that high pressures in lines with leaks are avoided.