2016 Risk Course Book

Human Factors

Comparison of Error Types Comparison of error types resulting in quality incidents and worker safety incidents

10 15 20 25 30 35 40

Percent of Errors

0 5

Recognition Failure

Memory Lapse

Slip

Violation

Rule Errors Knowledge Errors

Quality Incidents

Worker Safety Incidents

Adapted from Hobbs and Reason, Figure 4.4

25