Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M8127

HAZOP

HAZOP
SystemsHigh supportSystems Theory
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Version 1.0.0 · Updated 2026-07-28

CORE DEFINITION

A hazard and operability study (HAZOP) is a structured and systematic examination of a complex system, usually a process facility or machinery, in order to identify hazards to personnel, equipment or the environment, as well as operability problems that could affect operations efficiency. It is the foremost hazard identification tool in the domain of process safety. The intention of performing a H

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

A hazard and operability study (HAZOP) is a structured and systematic examination of a complex system, usually a process facility or machinery, in order to identify hazards to personnel, equipment or

anchor

Anchor fast decisions

Systematically perturb each design parameter using a set of guide words (none, more, less, reverse, part of, other than) to exhaustively enumerate possible deviations from design intent, and then have a cross-disciplinary team evaluate consequences and countermeasures.

MINIMUM ACTION

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Hazard_and_operability_studyZH · Explicit
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