What hazard analysis is
Hazard analysis is a systematic process used to identify, describe, and characterize potential sources of harm (hazards) associated with a system, activity, or operation before and during its use.
It focuses on understanding **what could go wrong**, under what conditions, and with what possible consequences, without yet deciding how to control or accept the risk.
Typical elements of a hazard analysis
A hazard analysis commonly includes:
– Defining the system, process, or operation being studied, including boundaries and interfaces.
– Identifying conditions, events, or failures that could lead to undesired outcomes such as injury, environmental impact, product nonconformance, loss of function, or equipment damage.
– Describing how each hazard could be initiated, propagate through the system, and be detected.
– Characterizing each hazard in terms of context, affected components, potential consequences, and any existing safeguards.
– Documenting assumptions, data sources, methods used, and rationale for identified hazards.
Outputs are usually a structured list or database of hazards with their causes and potential consequences, plus traceable documentation that can be reviewed and updated over the lifecycle of the system or process.
Use in industrial and manufacturing environments
In industrial operations and regulated manufacturing, hazard analysis is often:
– An input to formal **risk assessment** and risk control activities.
– Used during process design, technology transfers, and changes to equipment, automation, or control systems.
– Integrated with quality and safety approaches such as FMEA, HAZOP, and process hazard analysis to support compliant, documented decision-making.
It supports engineering, operations, quality, and safety teams in prioritizing risks, specifying controls, and maintaining configuration and change records.