[acqq]

The "failures" of the sensors are simply the "less common" inputs. The proper control software should simply be written for all possible inputs, which include inputs from faulty sensors, and the result of the processing should not have some catastrophic consequences.

Compare to the web app that awaits the username, but when the username is not the "most common" (e.g. contains some new unicode symbols, or is of zero lengh) it allows catastrophic security failure and intrusion.