Human Factors Engineering

NASA’s Dirty Dozen

The Dirty Dozen highlights the most frequently observed human-related issues discovered during Fiscal Year 2022 agency mishaps and close-call investigations. Throughout the year, these issues contributed to $3,310,298.74 in damage costs and 630 workdays of lost time.

NASA’s Human Factors Analysis and Classifications System (HFACS)

In Reason’s Swiss Cheese model, there are four “slices “or tiers of human error potential, divided into two sections: an “active” layer and “Latent Factors”: preconditions, Supervision, and Organization. The goal of the Human Factors Analysis and Classification System (HFACS) is to understand human factors throughout the system rather than stopping at the operator. Most

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