ah .. but one still has the little problem of lining up the black and white of the idealised and repeatable certification animal with the sometimes quite different real world beast.
As the aviation world is moving these days .. one needs an holistic risk minimisation approach to one's decision making .. most of the time the real world matches the ideal sufficiently (or with sufficient margin) that the decision is programmed and easy .. sometimes it is not quite so simple as overlaying the real with the ideal.
Well it might be very nicely put, but what the hell does it mean? Is it Yes or is it No?