User interface design of a software suite for systems for 3D printing of metal components. The software is used in a wide variety of utilization scenarios on touch panels, PCs and mobile devices and has a modular structure. The complete production process can be accompanied and the status of all the system components monitored at all times. User operation is workflow-oriented and is structured intuitively. The interface has a clear layout and each app is color coded. Construction process progress and all key figures are easy to understand. The functionality can be customized user-specifically and extended through widgets.