Human Error Flashcards
Slip
Failure in execution of action. Intended behavior is appropriate, but is not carried out correctly. “Writing wrong year on check.”
Mistake
Errors in planning of action. Intended behavior is inappropriate under the circumstances. Poor decision, misclassifies situation, or fails to take factors into account. “Deciding to let a flight take off despite knowledge of bad weather.”
Lapses
An intended action is forgotten and not carried out. “Failing to attach files in an email.”
Violations
Intentional choice to disobey or procedure (w/o the intention to cause harm). “Not wearing helmet.”
Mode Errors
Action is appropriate in one system mode, but is carried out in a different mode. “Failing to put car back into drive after backing up a little bit.”
Error of Omission
The user fails to perform the required action. “Not putting milk back into the fridge.”
Error of Commission (EOC)
The user performs an inappropriate action (extra action). “ Put milk and cereal back in the fridge.”
Timing Error (EOC)
Preforms an action too early/late. “Driving.”
Sequence Error (EOC)
Performs the steps in the wrong order. “Baking.”
Selection Error (EOC)
Uses the wrong control. “Press wrong button.”
Input Error
Information from the sensory and perceptual processes.
Mediation Error
Cognitive processes that translate between perception and action. “Thinking/deciding.”
Output Error
Due to the selection and execution of physical responses. “Preform action incorrectly or select wrong control/action.”
Recoverable Error
Can be corrected and consequences minimized.
Non-recoverable Error
System failure is inevitable.
