QTA App 2 is an application that can be installed on smartphones, which allows you to record operational and other events within the QTA system and take photos documenting them.An essential element of the QTA solution is that an operational event can only be taken with this mobile application and only with at least one photo taken. Because the position of the device is also saved and a timestamp is placed that cannot be altered or tampered with, both the owner and service provider have a reliable and well-documented record.The devices running the application are registered in the system by the service provider, they can be assigned to an employee, and several statements can be created, which contain the operational events and the different performance data related to them, broken down by device. It can also be used for control and performance-based pay.