5 ms·
Depends on the UI/UX. An oil indicator light doesn't warn about impending low oil, it tells you your oil is too low. An RPM dial does the same. Other indicators
by greedo 5y ago
Depends on the UI/UX. An oil indicator light doesn't warn about impending low oil, it tells you your oil is too low. An RPM dial does the same. Other indicators warn of impending issues; stall warnings, wear indicators on tires etc.
For an aircraft/spacecraft, red indicators should be used to inform the user to the most critical factors; stall warnings, fuel state warnings etc. And most importantly, the user should be able to act on these warnings, otherwise they're just too much noise and not enough signal.
- NikolaNovak 5y agoHmm somewhat of an interpretation Low oil doesn't tell you engine is dead, it tells you of an impending danger that engine may be damaged. There are any number of actions driver can take. Same for tachometer - red says you are outside design optimal parameters and you should take an action (slow down) rather than risk possible impending engine damage. Neither is "bad thing happened, it's done, there are no actions you can take any more" in my interpretation.