The SUM controls the entire procedure, from checking the system requirements and importing the necessary programs through stopping production operation until production operation is resumed. The procedure is divided up into a number of different roadmap steps. The roadmap steps are in turn divided into individual steps. The successful completion of a step is a precondition for the success of all subsequent steps.

For more information, see the SUM guide mentioned in Other Required Documentation, especially the section Running the Software Update Manager  Downloading and Unpacking the Software Update Manager..