The Position Logging System (PoLo) is a freely configurable system to ensure safety through distinct authentication and seamless monitoring of all air traffic control activities. Air traffic controllers can simply log in to the system with their company ID. Permissions are checked automatically and data on licenses or training times will be recorded. All information is available at a glance for the supervisor. The module can be used both in the tower and in the distance control. All tasks from planning, through development to production and support were accomplished by ies. Safety, availability and cost came first to meet high demands along with smallest dimensions.