... Where load carriers used to stand close together along the conveyor belt and employees had to search for, pick up and install the parts themselves, today there are only a few tool trolleys and data terminals. Everything else that the employee needs to assemble a side door is now brought to the assembly line by the driverless transport vehicle in so-called "car sets", pre-picked and precisely in time with the respective vehicle. The complexity between assembly and logistics is extremely high: ...