We can change people’s performance by better training and instructions, better supervision, and, to some extent, better motivation.
What we cannot do is enable people to carry out tasks beyond their physical or mental abilities or prevent them from making occasional slips or having lapses of attention. We can, however, reduce the opportunities for such slips and lapses of attention by changing designs or methods of working.
Source: An engineer’s view of human error, Third edition, Trevor Kletz, 2001
