When an aircraft manufacturer decides to create a new model, it doesnât ask pilots and crew to identify the best cabin, wings, jet engines, and other parts, and then put all the pieces together. A plane developed that way wouldnât fly. The company begins with a goal, such as safely carrying 250 passengers nonstop from New York to London in under six hours, and follows a disciplined approach to identify the components and subsystems that meet those requirements....
