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
Self Balancing Robot kit with Arduino Uno
$190.00
End Date: Sunday Oct-19-2014 20:33:54 PDT
Buy It Now for only: $190.00
Buy It Now | Add to watch list
1x I/O Extension PCB for Arduino UNO R3 Board DIY.
$1.99
End Date: Sunday Oct-19-2014 19:46:04 PDT
Buy It Now for only: $1.99
Buy It Now | Add to watch list
Digispark Kickstarter Micro General Universal USB Board Module For Arduino New
$3.99
End Date: Sunday Oct-19-2014 18:35:35 PDT
Buy It Now for only: $3.99
Buy It Now | Add to watch list


Comments are closed.