1. A control system for controlling an integrating process, comprising: an input through which a set point for the process is input; an output through which a control output is output to the process for controlling the process; and a controller in which the integrating process is represented using a non-integrating process model that approximates the behavior of the integrating process, and the controller configured to: in response to a set point change, predict a process variable of the integrating process using the non-integrating model as part of a parametric model-based control technique; and generate the control output based on the predicted process variable.