Abstract: The invention relates to a system for an appointment robot (R), the system comprising a master module (MA) and a plurality of client modules (CA1, CA2, CA3). The master module (MA) is provided for the purpose of accessing diary entries and creating an appointment robot (R) with a parameter set (P) and command set (B) connected thereto and using a data network to transmit said appointment robot to one or more client modules (CA1, CA2, CA3) and receiving groups or lists of provisional appointment entries (T1, T2, T3) from each of the client modules (CA1, CA2, CA3) and evaluating said groups or lists in order to ascertain one or more diary bookings. The client modules (CA1, CA2, CA3) are provided for the purpose of each receiving an appointment robot (R) with parameter set (P) and command set (B) connected thereto from a master module (MA) and accessing diary entries and creating a group of provisional appointments (T1, T2, T3) and transmitting said group to the master modules (MA).