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recent bookmarks from jmDon Norman on "Human Error", RISKS Digest Volume 23 Issue 07 20032018-01-15T15:02:01+00:00
http://catless.ncl.ac.uk/Risks/23.07.html#subj10
jmIt is far too easy to blame people when systems fail. The result is that
over 75% of all accidents are blamed on human error. Wake up people! When
the percentage is that high, it is a signal that something else is at fault
-- namely, the systems are poorly designed from a human point of view. As I
have said many times before (even within these RISKS mailings), if a valve
failed 75% of the time, would you get angry with the valve and simply
continual to replace it? No, you might reconsider the design specs. You would
try to figure out why the valve failed and solve the root cause of the
problem. Maybe it is underspecified, maybe there shouldn't be a valve there,
maybe some change needs to be made in the systems that feed into the valve.
Whatever the cause, you would find it and fix it. The same philosophy must
apply to people.
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