uSwain and Guttman’s
(1980) Human Error Categories.
lError
of Omission
utpographicl
errrs
lError
of Commission
uHitting
thumb with the hammer
lExtraneous
Act
ureading
a different class's assignment in class
lSequential
Error
uMy
usual: light the fire before opening the damper
lTime
Error
urunning
a red light