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LLM automated hazard identification, Safety-aware reasoning needs hazard…
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Safety-aware reasoning needs hazard models, and nobody produces them automatically
The hypothesis: an LLM pipeline with human review can identify hazards in supplier operator manuals and use them to fill an ISO 12100-aligned hazard model, with every entry traceable to its source text. This is the step that makes autonomous safety-aware reasoning and assisted hazard identification possible without adding the extra manual step of authoring these models
Assisted hazard identification in reconfigurable manufacturing needs hazard models, and nobody produces them automatically
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What structure must a module hazard model have to follow ISO 12100 and be usable by downstream safety assurance activities in RMS?
Collect the requirements from the standards. List what ISO 12100 and ISO/TR 14121-2 say a hazard identification must record: the hazard, the hazardous situation, the hazardous event, the persons exposed and the task (14121-2, 5.3.3). Then list what ISO 20607 says the manual provides.
Create the hazard model from the collected requirements. Turn each requirement into one field of the model, and state the clause each field comes from.
Split the fields by who fills them. Fields that belong to hazard identification are filled by the LLM. Fields that belong to risk estimation, such as the risk level, are left to the expert. This follows the separation of 5.3 and 5.4 in ISO/TR 14121-2. The standard separate as two steps.
Estimation must be done by the expert because its input is not in the manual.
Risk depends on how the module is used in a specific cell: how often and how long people are exposed, whether they can avoid the harm, what the layout and the other modules are. The supplier does not know the final installation, so the manual cannot contain this. An LLM filling these fields would have to guess, and a guess cannot be traced to a source.
Accountability.
Your project description requires human accountability. Estimation is where the decisions that matter are made (is the risk acceptable, what reduction is needed), so that is where the expert must sit.
Identification can be done by the LLM because its input is in the manual.
Identification describes the scenario: the hazard, the situation, the event, who is exposed, during which task. Suppliers already write this in their warnings and safety chapters, because ISO 20607 requires them to. So the LLM only finds and structures text that exists in the source. Each record can be checked against its source passage.
What segmentation rules split a supplier instruction handbook into units that keep its hazard information and suit LLM extraction?
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How can an LLM pipeline with human review be designed to support accurate population of this hazard model from supplier operator manuals?
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