A dairy farm system, with specified zones each capable of housing one or more milking animals at a time, devices for performing actions related to milking animals in the zones, and a management system that controls the operation of the system and stores animal specific data including information of any zone where a milking animal is located at each instant. Each of the devices, each with control means and storage means provided thereon, is communicatively connected to the management system, and is associated with at least one zone in which the device operates. The management system sends the devices animal specific data of only the milking animals which enter, are about to enter, or have entered a zone with which a device is associated. The animal specific data contain control data used by the control means of the device for controlling the operation of the device.
