The hierarchy of professional diligence, from highest to lowest, would be: * avionics/aeronautics * chemical/electrical/mechanical * civil engineer

The hierarchy of professional diligence, from highest to lowest, would be: * avionics/aeronautics * chemical/electrical/mechanical * civil engineering * automobile industry * movie stunts and pyrotechnics * art installations * software [!] [!] To be honest, this is the exception in this list, because there is no accountability.