Abstract: A driver assistance system for controlling a combination of agricultural vehicles including a towing vehicle designed as a tractor and a mounted device, wherein the driver assistance system generates control parameters for the towing vehicle and/or for the mounted device. The driver assistance system has an input/output unit for the dialog with the user.

Abstract: A working machine, in particular a combine harvester, having multiple working elements for carrying out or assisting work, and a driver assistance system for controlling the working elements according to at least one processing strategy which can be specified by the operator and directed to the fulfillment of at least one quality criterion. The driver assistance system has a memory for storing data characterizing the processing strategy, a computing device for processing the data stored in the memory, and a graphical user interface. Competing quality criteria, weighted with respect to each other according to a weighting variable, are incorporated into the processing strategy. The weighting variable is visualized via a virtual control element of the graphical user interface and can be specified by the operator. The driver assistance system registers the strategy selection of the operator, predicts an optimization goal, and presents an optimization proposal for this predicted optimization goal.