Dynamic Living Safety Cases

Replace Frozen Safety Cases
with Living Assurance

Upgrade from multiple shelfware PDFs and fragmented spreadsheets to real-time bowtie modelling, automated change impact analysis, and tamper-evident audit trails. Built for mission-critical engineering.

Book an Engineering Walkthrough Interactive Bowtie Demo

Use it yourself, or have it done for you — our SQEP safety engineers can migrate your legacy hazard logs, populate the models, or write the safety case. How the service works.

Built for High-Hazard & Regulated Domains

Defence Nuclear Rail Aviation & Space Energy Healthcare Cyber

Def Stan 00-056 MIL-STD-882E ONR SAPs EN 50126 ARP 4761 / AC 25.1309 ISO 17776

Enterprise & Site Rollup

One Connected Platform. Total Traceability.
Across Your Whole Estate.

One safety case tells you whether a process is safe. SAFOPS rolls every case across a site, a unit or a plant into one live risk picture — initiating events, barriers and consequences connected in real time.

Site rollup — live

Northfield Site

Residual risk vs site tolerability2 groups above target
Projected, if the open backlog were closedall within target
Open deficiencies across every case214
Barriers claimed by more than one process3
Glovebox Machining18 fault sequences · 63 barriersOpened below
Utilities24 fault sequences · 71 barriers
Storage & Loading10 fault sequences · 27 barriers
And every one of those numbers opens

Those 214 open deficiencies are not a line in a report. Each one sits on a barrier plate, inside a fault sequence like this one.

A real SAFOPS bow tie diagram: two initiating events pass through preventative barriers to the hazard, then through mitigative barriers to four exposure-group consequences, with an unsubstantiated barrier flagged

Nuclear ONR SAPs

Launch the Interactive Demo →
What the rollup actually gives you

Risk that actually adds up

Residual risk from every case beneath the parent, summed by exposure group and scored against the site's own tolerability limits — not a folder of PDFs someone has to read end to end and total by hand.

What closing the backlog buys you

A projected site risk profile modelling every open deficiency as closed, shown beside today's actual position. That is the business case for the safety spend, not just the list of gaps.

Drivers ranked across the estate

The fault sequences genuinely driving site risk, ranked across every case at once — so effort goes where the risk is, rather than wherever the last review happened to look.

Shared barriers, counted once

A barrier claimed by three processes is resolved once rather than triple-counted. Degrade it or take it out of service and you can see every case across the site that was depending on it.

One report, every figure traceable

The Facility Report exports the whole picture to Word, PDF or HTML with each number traceable back to the case it came from — and states plainly when a case is excluded from the totals, rather than quietly understating site risk.

Still isolated where it matters

Rolling up does not merge anything. Each case keeps its own risk matrix, templates, permissions and audit chain, so a change in one process can never bleed into another.

See how the estate rollup works →

Everything a Defensible Safety Case Needs

Build, assess, and audit living safety cases — rigorous, traceable, and defensible from initiating event to ALARP justification.

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AI-Augmented Safety Engineering

Draft fault group assessments and barrier recommendations with optional AI. Choose convenient online models or a secure, air-gapped local engine so sensitive data never leaves your environment — and every suggestion is still reviewed, and logged, by an engineer.

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Explore the AI Safety Copilot β†’
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Interactive Fault Sequence Diagrams

Pan, zoom, and test live bowtie pathways in real time. Hover any barrier to see its zone of influence, spot single points of failure and common cause failures, and open deficiencies right on the diagram — not buried in a separate tracker.

See interactive bowtie mapping β†’
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Fully Configurable Risk Matrices

Qualitative severity grids or quantitative dose thresholds: SAFOPS conforms to your methodology, not the other way round. Each project starts from a template built to its own standard — ONR SAPs, EN 50126, Def Stan 00-056, ARP 4761 — and adjusts from there.

Configure your risk matrix β†’
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Tamper-Evident Verification

Every change, by an engineer or by AI, is cryptographically sealed into a SHA-256 hash chain. Alter any past entry and the break is instantly detectable at audit — a record you can hand to a regulator, not just a log you hope nobody edited.

See the tamper-evident audit trail β†’
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Open, Portable & Zero Lock-In

File-based persistence by design, not by limitation. Each project is an open, inspectable Excel schema rather than a proprietary database you cannot read without us — deployable on a workstation or a server you control, with nothing to provision and no cloud tenancy in the path. Every edit is hash-chained, so the file cannot drift silently the way a shared spreadsheet does.

See how portable deployment works β†’
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Unified End-to-End Platform

Stop stitching together disparate tools. SAFOPS connects initiating events, engineered barriers, substantiation evidence, ALARP justification, and the audit log in one continuous workflow — no fragmented modules, no add-ons, no re-keying between systems.

Explore the unified workflow β†’
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Automated Reporting

Generate formatted Word and PDF safety case chapters directly from the live fault models, so the document is always a snapshot of the current case — not a copy someone last updated months ago. Regenerate in seconds after any change.

See automated report generation β†’
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Import Your Existing Data

Bring in Excel hazard registers, Cassandra legacy exports, or plain free text via AI-assisted extraction. Every import runs as a dry run first, showing exactly what will be created before anything is written — so nothing is duplicated or silently overwritten.

Learn how data import works β†’
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Automated Scheduling

Generate schedules of safety measures straight from your models — protection, engineering, and LAC schedules linked to their Safety Functions, with proof-test intervals defined once and kept in step as the case evolves.

See automated scheduling β†’
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Change Impact Analysis

Simulate removing a safety measure and see instantly which fault sequences would no longer meet requirements — deterministic, no AI involved. Know the full consequence of a modification before it is approved, not after it is found on site.

Simulate a change impact β†’
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The Golden Thread

Click any fault, barrier, or exposure group to see everything it is connected to — the shared equipment a flat document would hide. Trace one safety measure to every fault it protects, and one fault to every measure protecting it.

Explore the Golden Thread graph β†’
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Enterprise & Estate Rollup

A site over its facilities, a unit over its platforms, a plant over its processes — every case beneath a parent rolled into one live risk picture: summed residual risk, the projected position if the backlog were closed, ranked drivers, and shared barriers resolved once. Each case still keeps its own matrix, templates and audit chain.

See the estate rollup β†’
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Branch, Diff & Merge

Work up a modification or a regulator's challenge in an isolated, fully editable copy of the live case. Diff it against the original as a readable change set, then fast-forward merge when it is agreed — with the audit trail intact.

See branching and merging β†’
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Time Machine & Formal Issue

Scrub through the full edit history, diff any fault against any past date, and restore any save point — not just the last. Freeze formally issued versions as permanent records of exactly what was approved, and when.

Explore Time Machine β†’
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Security & Deployment

Hosted, on-premise, or fully air-gapped from one identical image. Per-project access control, login lockout, CSRF protection, HMAC-anchored audit logs, and frictionless JSON export so nothing is locked in.

See security and deployment β†’

Frequently Asked Questions

Is SAFOPS available for on-premise or air-gapped deployment?

Yes. SAFOPS can run fully on-premise or fully air-gapped, including the AI Copilot, which offers a secure local engine so your proprietary data never leaves your network. It's also available as a web-based deployment for teams who prefer that.

Does SAFOPS require an internet connection or complex infrastructure?

No. SAFOPS is lightweight and portable: each project lives in an open, inspectable open Excel schema rather than a proprietary database, so it deploys on a workstation or a server you control with no database to provision and no cloud tenancy required.

Is AI use in SAFOPS optional, and how is my data handled?

AI is opt-in throughout SAFOPS, used to draft fault group assessments and suggest barriers. You choose between convenient online models or a secure, air-gapped local engine, and every AI suggestion is logged in the same tamper-evident audit trail as manual edits.

How does SAFOPS keep an auditable record of changes?

Every edit, whether made by an engineer or suggested by AI, is logged in a SHA-256 hash chain. Altering any past entry is immediately detectable, giving you a tamper-evident record for regulator and auditor review.

What industries and safety standards does SAFOPS support?

SAFOPS ships with configurable risk matrices for multiple sectors, including nuclear, aviation, rail, defence, automotive, cyber, and oil & gas, each with its own risk methodology and switchable per project.

Can I import my existing hazard register or safety case data?

Yes. SAFOPS imports Excel hazard registers, legacy Cassandra exports, or free text via AI-assisted extraction, always running as a dry run first so nothing is duplicated.

Ready to build your first Living Safety Case?

Experience real-time barrier verification, dynamic bowtie modelling, and tamper-evident audit trails.

Book an Engineering Walkthrough Interactive Bowtie Demo ↗