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Tag Archives: Human error
Expensive slip
My OH bought me a coffee this morning using his chip-and-pin card. The waiter handed him the machine, he entered his PIN, pressed enter, and handed the machine back to the waiter. What’s wrong with this picture? Well, the machine hadn’t been asking for the PIN, it was asking how much tip he would like […]
Safer but slower: incremental number entry interfaces
Drug dosing errors arising from incorrectly entered numbers account for a significant portion of the adverse drug events in hospitals. This study compared two different types of number entry system to see which resulted in fewer errors. While having their eye movements tracked study participants were asked to enter a number using either a numeric […]
Do people become over-reliant on cues?
Previous research by Mike Byrne has demonstrated that aggresive cues are effective at reducing post-completion errors. For such cues to work, they have to appear just-in-time, i.e. at precisely the time the user is supposed to perform the action. Our question was “do people might become over-reliant on such cues?” That is, if they missed seeing […]
Errors in number entry – a taxonomy
Incorrect drug doses are a common medical error. Using a set of number entry errors gathered last year, we have created a taxonomy which lists the varying types of errors collected and groups them by potential cause and at what point they occur during the number entry process. Entry errors can occur when a number is […]
Recovering from interruptions
Hospital wards are busy places, and medical professionals conducting routine tasks, such as setting up an infusion pump, are likely to find themselves interrupted at some point in the sequence. We have been investigating ways to reduce cognitive slips caused by interruptions, such as exploring the value of encouraging users to stop and think before […]