I just heard from a nephew that it is not possible to have a safe aircraft without any possible quality assurance. I think, he is correct that it needs comfort and safety. These are crucial in aviation industry. It would really need a certain standard to maintain an effective quality management. But, don't you think that aviation also needs a risk management to determine the problems that might occur? I'm a traveler and I'm curious about a solution that could initiate these preventive procedures. What is it all about? How does Aviation benefit from those things?