RR_NDB
Howdy pard. I appreciate your focus on the interface. I think in the terminology is a trap, maybe. Interface suggests a "give and take", a fluctuation if you will, suggesting of two entities, Man, Machine. At no time should the two present anything but an enhanced platform, without the best performance from both, at all times. Scan, S/A, vigilance from the Human, and consistent electron behavior from the Computer. It makes NO sense to allow one or the other to get "disconnect". A Scan is a continuum, and S/A, the same. It has a history prior, it isn't "up and running" on demand. Therefore, even though the regime is based on two different "processes", a language must exist between the two formats. Cruise flight is a challenge to remain "engaged" for the Humans.
Surprises come from different areas, lack of preparation, lack of data, lack of understanding, etc. A certain baseline "anticipation" is necessary, if at any moment one must fly, one must be ready. The Air France crash is a case study, at least from what we know.