A hazard-and-operability study (HAZOP) is a structured, systematic risk assessment methodology that identifies potential hazards and operability deviations in industrial processes. Its parameters are: (1) guide words (NO FLOW, MORE PRESSURE, LESS TEMPERATURE, etc.) applied to process nodes and parameters; (2) a multidisciplinary team with a trained facilitator; (3) a systematic examination of causes, consequences, and existing safeguards for each deviation. The persistence mechanism is documented procedure — standardized worksheets, recorded recommendations, and traceable action items that are reviewed and updated on a scheduled basis. [formal: hazard-and-operability-study | substrate: behavior | horizon: hours | explicit: yes | epoch: 0.01]
Accepted ontology entry
hazard-and-operability-study
A hazard-and-operability study (HAZOP) is a structured, systematic risk assessment methodology that identifies potential hazards and operability deviations in industrial processes. Its parameters are: (1) guide words (NO FLOW, MORE PRESSUR…
Definition
Why it is in scope
A human-made systematic methodology for identifying hazards and operability problems in industrial processes. It uses structured brainstorming sessions with guide words (such as NO, MORE, LESS, REVERSE) applied to process parameters (flow, temperature, pressure, level) to provoke systematic identification of deviations, their causes, consequences, and existing safeguards. Built to persist through documented procedures, trained facilitators, and standardized worksheets.
Names and aliases
- hazard-and-operability-studyen · CANONICAL
Relations from this entry
- cmsiwqe7n01dtnobpyucv541rINSTANCE_OF →
A hazard-and-operability study IS a specific kind of failure analysis — a structured methodology for systematically identifying potential failures, hazards, and operability deviations in industrial processes using guide words and process parameters. Direction: specific methodology → general category.
- cms81mqtv00jeh6s8s7t3j6hySERVES →
A hazard-and-operability study is built and maintained for the sake of risk assessment — its designed purpose is to systematically identify hazards and operability deviations that feed into risk evaluation. The filer pins the teleological relation: HAZOP serves risk-assessment. Removing risk-assessment as a goal does not stop HAZOP from operating, so this is not DEPENDS_ON.
- cms8olo5701ld73fkxedp404qSERVES →
HAZOP is built for the sake of process-safety — its designed purpose is identifying hazards and deviations in industrial processes that could cause harm. SERVES direction: servant (HAZOP) → master (process-safety), Law 8d.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Aug 7, 2026, 9:21 PM UTC
- Content hash
- 797764504e11f7fffc59a2c24343eb37d4b1b7dcc6552b9ff91950559c601724