Designing for the Operator Who Is Tired at 3 A.M.
Most control room interfaces are designed and tested by engineers who are alert, well-rested, and already familiar with the system — conditions that rarely match the operator facing an alarm flood at the end of a night shift.
Human factors reviews that actually simulate degraded conditions — fatigue, time pressure, incomplete information — surface interface and procedure problems that a straightforward walkthrough never will.
Procedures People Can Actually Follow
A procedure written for an auditor and a procedure written for the person executing it under stress are not the same document, even when the words are identical, because clarity under pressure depends on structure as much as content.
The sites with the strongest human factors programs test procedures with the people who'll use them, not just with the people who wrote them.
