The system of record for Integrity Operating Windows.
Extracted automatically from your engineering corpus. Classified by a deterministic compliance engine grounded in API RP 584 and 571. Queryable across the entire facility — with a signed audit trail behind every claim.
API RP 584 calls for 20–60 Integrity Operating Windows per process unit, each tier-classified and actively monitored. Today this work is done by hand, in spreadsheets and tribal memory. The cost shows up in audit findings. Sometimes it shows up in fatalities.
Manual review of HAZOP worksheets, I/O lists, C&E matrices, and equipment datasheets — for a single unit, by a senior engineer.
A 20-unit refinery or gas plant typically takes one to three years to complete a full IOW baseline. The cycle starts again before it ever ends.
Spreadsheets and institutional memory. No source traceability, no signed evidence, no defensible record. When the regulator asks, evidence is reconstructed in a panic.
GCC operators now sit under regulatory frameworks that mandate documented, current IOW registers across every process unit — with active enforcement, defined review cycles, and personal accountability. Spreadsheet workflows do not pass these audits.
IOW extraction is hard. But the larger failure mode is what happens after extraction: a register that nobody can query, that loses its expert context the moment a senior engineer retires, and that gives no answer when a Management of Change asks which equipment does this affect?
Why a particular damage mechanism applies, why a tier was set where it was, what an excursion in 2017 actually meant — these answers live in the heads of senior process-safety engineers. When they retire, the IOW register survives but the meaning behind it does not.
A shift in feed composition, a setpoint adjustment, a new piece of instrumentation — each one demands an exhaustive trace through every IOW, damage mechanism, equipment tag, and downstream control it might affect. Today this is done by hand, takes weeks, and routinely misses interactions.
"Show me every IOW affected by H₂S partial pressure on austenitic stainless steel above 60 °C" is a one-line question that takes weeks of spreadsheet work to answer — assuming the register has the granularity to answer it at all. Most don't.
A naphtha hydrotreater heat exchanger ruptured during a startup operation, releasing flammable hydrogen and naphtha at over 500 °F. The U.S. Chemical Safety Board investigation found that the unit had been operating for years inside conditions for which the controlling integrity assumption — the API 941 carbon-steel Nelson curve — was simply not conservative enough.CSB
Inadequate IOW management is not a paperwork problem. It is the gap between what the equipment is rated for and what it is actually being asked to do — and when that gap stays invisible, people die. Every operator on the Gulf is one undetected damage-mechanism interaction away from its own version of this incident.
Tarchon is built around a single architectural commitment: every output the platform produces — whether an extracted IOW, a Management of Change impact analysis, or a regulator-ready evidence dossier — must be bound to a named rule, an identifiable source passage, and a cryptographic signature. The compliance engine is what enforces that, on the way in and on the way out.
Every IOW Tarchon extracts becomes a node in your facility's process-safety knowledge graph. Every downstream answer carries the same audit trail as the extraction that produced it — because the same compliance engine powers both.
Change a feed composition, a setpoint, or a single piece of instrumentation. Tarchon immediately traces every IOW, damage mechanism, equipment tag, and downstream control that the change touches — across the entire asset, in graph time.
The same compliance engine that classified the original IOW now reasons about the change. Nothing the engine was not allowed to assert during extraction is allowed during impact reasoning.
Ask plain-English questions across the full process safety corpus. Domain-aware autocomplete, rule-validated traversal, every claim signed.
One-click audit dossier. Every claim resolves to its rule, its source, its reviewer, and its signature.
Every IOW is tier-classified against a named API 584/571 damage mechanism, bound to its source passage, and Ed25519-signed. Built for regulators, not demo days.
What takes a process safety team three to eight weeks per unit, Tarchon delivers in hours. At facility scale, the gap is years.
Every extraction writes to a process-safety knowledge graph from day one. Ask MOC change-impact questions across the entire asset and get answers in days.
ADNOC's AIPSM Framework, Saudi Aramco's PSM and mechanical-integrity standards, and QatarEnergy Corporate HSE now require documented, current IOW registers with personal accountability assigned to operating-site leadership. Audit findings on IOW management have moved from "opportunity" to "finding" inside two reporting cycles. Manual workflows are out of compliance the day they are filed.
200K-context, multimodal vision-language models can now reliably parse HAZOP worksheets, equipment datasheets, and P&ID legends. What changed in 2025 is the verifier: pairing LLM extraction with a deterministic compliance engine catches the residual hallucinations that blocked production deployment for a decade. Black-box AI alone still does not pass an audit. The combination does.
Heightened regional tensions and intensifying state data-residency requirements have eliminated foreign-only SaaS from NOC procurement shortlists. Tarchon ships in three forms — UAE-sovereign cloud, customer-tenancy on-premises, and fully air-gapped appliance — because that is the boundary of what NOC procurement will sign for. The security boundary is the moat, not the model.
From sovereign cloud to fully air-gapped facility appliances — Tarchon ships in the form your security and procurement teams already approve.
Multi-tenant Tarchon SaaS hosted in the UAE-North sovereign region. Data never leaves the region. SSO, SAML, audit logging, and customer-managed keys included.
Full Tarchon stack deployed inside your tenancy or on-premises infrastructure. Zero data egress. Operates inside your existing change-control and security boundary.
Self-contained inference appliance for fully air-gapped facilities. Ships pre-configured with dual H100-80GB GPUs. No outbound network connectivity required.
In a 45-minute working session, we will run Tarchon on a representative HAZOP and equipment datasheet from your facility and walk through the resulting tier-classified IOW register, source traceability, and audit export.
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