Sometimes No Amount of Design Can Help…

When a Florida flight crashed in December of 1972, the black box was of immense help in determining the cause of the crash. Sadly, it wasn’t design error or mechanical failure – it was human error. The recording indicated that the cockpit crew became absorbed in changing an indicator light bulb. During this, the autopilot became disengaged, and they lost altitude. When the bulb was fixed, the crew wouldn’t believe their instruments (including audible warnings and alerts), spent precious time deciding whether to pull up or not, and eventually crashed.

Although tragic, from a design perspective there was not much more that could have been done to prevent this. There were quite a few alerts and procedures in place to prevent this kind of catastrophe. The story is however a cautionary tale for designers: it’s important to remember that when a person using your device or program is immersed in it, their focused attention might well drown out other things, including warnings and alerts. Therefore we need to always be aware of that possibility, and be prepared to repeat our message, depending on the seriousness of the situation.

SOME ITEMS YOU MIGHT ENJOY
UNO R3 ATmega328P CH340 Mini USB Board for Compatible Arduino New BK
$5.77
End Date: Saturday Mar-12-2016 20:15:34 PST
Buy It Now for only: $5.77
Buy It Now | Add to watch list
UNO R3 Starter Kit 1602 LCD Servo Motor Dot Matrix Breadboard LED for Arduino.
$20.00 (15 Bids)
End Date: Friday Feb-12-2016 13:10:00 PST
Bid now | Add to watch list
UNO R3 Starter Kit 1602 LCD LED Motor Dot Matrix Breadboard Set for Arduino NEW
$25.49
End Date: Thursday Mar-3-2016 23:22:51 PST
Buy It Now for only: $25.49
Buy It Now | Add to watch list


Comments are closed.