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DoD HFACS 7.0 Intro


Human factors describe how our interaction with tools, tasks, working environments, and other people influence human performance.

Human error remains the leading cause of DoD mishaps. Many investigators look only as far as the person(s) involved inthe mishap. However, the majority of mishaps have supervisory and/or organizational influences that lead to or contribute to their occurrence. Mishaps are rarely attributable to a single cause, but are often the end result of a series of errors.

The purpose of the HFACS guide is to aid the investigator through a systematic, multidimensional analysis of potential human factors to explain what and why a mishap occurred. It is designed for use by all members of an investigation board in order to accurately record all aspects of human performance associated with the individual and the mishap or event. DoD HFACS helps investigators:

  • Perform a more complete investigation
  • Classify particular actions (or inactions) that sustained the mishap sequence
  • Contribute to the AFSAS database as a repository for detecting mishap trends and preventing future mishaps
  • How HFACS Works

HFACS Nanocodes

Investigation Questions

DoD HFACS 7.0 Guide

Human factors are the leading cause of DoD mishaps. The DoD HFACS model presents a systematic, multidimensional approach to error analysis and mishap prevention.