Touch-optimized user interface for the machines of a packaging machine manufacturer. The user-centric application is used on multi-touch panels to control the machines. The intuitive interface has a modular structure and provides uniform design for all different machine types. The interface has a process-oriented structure and is easy to understand. The simplified and consistent design provides information in a compact form. Important process values are communicated directly, ensuring that the operators are optimally supported in their work. Monitoring on mobile devices supplements the functional scope.