In previously defined customer-specific business processes, the app interacts with the process engine at scalable synchronization intervals. User activities can be listed according to their priority, filtered and processed in a generic user interface. The necessary process steps can be initiated. Added value, data enrichment, interaction with other devices and work facilitation through the implementation of numerous features such as speech recognition, Bluetooth, beacons, motion sensors, geocoding, NFC, notifications, MQTT and much more.