Table 1.

Categorization of errors

Pattern of failure	Definition
1	Step is not done
2	Step is partially completed
3	Step is repeated
4	Second step is done in addition
5	Second step is done instead of first step
6	Step is done out of sequence
7	Step is done with too much force or speed
8	Step is done with too little force or speed
9	Step is done in wrong orientation or direction
10	Step is done on/with the wrong object