Weather Compensation

Hello all! I understand why we need weather compensation, its usefulness and its logic. However, I don't quite understand how it's done mechanically/electrologically. It is my understanding that there is a temperature sensor that sends signals to a central controller. That controller then sends appropriate inputs based on a preset temperature curve to the inverter of the compressor and/or the electromechanical expansion valve (?). Could someone clarify how this is done please?

Thanks!