Reliability · Safety · Assurance

Safety engineering,
unified at last

Twelve analysis apps on one project — prediction, RBD, FMEA, FTA, GSN, SIL, hazard log and more — sharing one set of requirements, libraries and evidence. Define a component once and it is the same component everywhere.

IEC 61508 ISO 26262 ARP 4761 GSN Community Standard
18+
GSN validations
6
Export formats
IEC 61508
Workflows supported
59
Conformance checks

One platform,
every analysis method

ReliFrame Predict

Import a BOM and get failure rates with every π-factor shown. Community covers MIL-HDBK-217F parts-count and parts-stress; Professional adds Telcordia SR-332, FIDES 2022, IEC 61709, MIL-HDBK-217Plus, GJB/z 299C and NSWC-11 mechanical.

Community
ReliFrame RBD

Series, parallel, k-of-n voting and standby redundancy, with Monte Carlo simulation. Cut sets, Birnbaum and Fussell–Vesely importance, preventive maintenance, and diagram pages that reference other diagrams.

Community
ReliFrame FMEA

FMEA, FMECA and FMEDA in one worksheet. RPN or AP scoring, MIL-STD-1629A, ARP 4761, EN 50126 and ISO 14971 methods, and ISO 26262 fault classification. Functional and piece-part structure trees, with reusable failure-mode libraries.

Community
ReliFrame FTA

Fault trees with Boolean reduction, minimal cut set enumeration, and qualitative or quantitative evaluation. Basic events link back to the failure modes and hazards they came from.

Community
ReliFrame HazLog

A hazard log that carries each hazard from identification through mitigation to closure, with the analyses and evidence that discharge it attached to the record.

Community
ReliFrame GSN

Goal structuring notation for assurance cases, validated live against the GSN Community Standard. Structural violations surface as you build the argument, not at review.

Professional
ReliFrame SIL

Safety integrity level assessment against the target your hazard analysis set, with the architecture and failure data behind each claim held in the same project.

Professional
ReliFrame Risks

Hazard analysis and risk assessment — severity, exposure and controllability scored into the risk class your standard uses. Risk matrices are configurable per organisation.

Professional
ReliFrame Weibull

Life data analysis fitting Weibull, Gamma and Lognormal distributions to times to failure, including censored data. Feed the fitted rates straight into prediction and RBD.

Professional
ReliFrame Markov

State-based modelling for systems where repair, degradation and sequence matter and a block diagram cannot express them — multi-state availability, dormant failures, repair queues.

Professional
ReliFrame LOPA

Layers of protection analysis from an initiating event to residual risk, crediting each independent protection layer. Event tree analysis is included for the sequences LOPA cannot flatten.

Professional
ReliFrame CCF

Common cause failure groups with a shared beta factor, applied consistently wherever the grouped components appear — so redundancy is not credited twice across analyses.

Professional

Every app above is built and in the product today. The badge says which plan includes it — Community is free, and Professional adds the rest. Nothing here is a roadmap item.

The scaffolding
every project needs

The analysis apps sit on one project. Requirements, libraries, evidence and reports are platform, not per-app — so a component you define once is the same component everywhere, and a requirement is traceable to whichever analysis discharges it.

Requirements & traceability

  • Requirements register — safety and reliability requirements held against the project, not a spreadsheet beside it.
  • Traceability matrix — requirement to analysis to evidence, generated rather than maintained by hand.
  • Cross-analysis links — an FTA basic event, the FMEA failure mode behind it and the GSN solution that cites it stay connected.
  • Evidence register — the artefacts a claim rests on, attached where the claim is made.

Libraries & parts data

  • Component library — shared across the organisation, with per-project overrides.
  • Parts library — manufacturer and COTS parts, with the attributes each prediction standard needs.
  • Failure-mode libraries — FMD-style mode and mechanism catalogues, reusable across worksheets.
  • Failure-rate libraries — your own rates, cited and versioned, alongside the published standards.
  • NPRD / EPRD-style libraries — the schema is there for data of that shape. ReliFrame ships no licensed dataset; you bring data you hold the rights to.

Field data & reporting

  • FRACAS — incidents, failure reporting and corrective action, feeding observed rates back into the analyses that assumed them.
  • Reports — certification-authority packages as PDF and Word, data as Excel and CSV, interchange as JSON, diagrams as SVG or PNG.
  • Analysis history — recent computation results kept per page, so a number in a report can be traced to the run that produced it.

Administration

  • Account settings — profile, password or Google/Microsoft sign-in, sessions, and account deletion.
  • Organisation settings — members, roles, and what each role may do, editable per organisation.
  • Project settings — membership, modules, and the standards a project works to.
  • Analysis settings — mission time, risk matrices, scoring method and diagram palette, held with the analysis.
  • Audit trail — who changed what, and the authority they held when they did it.

Built for
safety engineers

Cross-tool traceability

Link FTA basic events to GSN solution nodes. Connect FMEA failure modes to RBD component blocks. Every analysis artefact is traceable across your entire safety case — no manual cross-referencing.

Built-in standards validation

GSN001 through GSN018 checked live as you construct your argument. Violations surface inline — before export, before review. Know your safety case is structurally sound at every save.

Real-time collaboration

Invite team members with role-based access — reviewer, editor, owner. Shared workspaces for cross-functional teams spanning systems, software, and functional safety disciplines.

Export for any stakeholder

Certification authority packages as PDF. Interchange as JSON. Diagrams as SVG or PNG. Data as CSV or Excel. Six formats — one click. Stop reformatting analysis output by hand.

The analyses
your standard expects

What a safety programme owes its assessor depends on the standard it works to. Below is what each one typically calls for, and the ReliFrame app that produces it.

Rail & transit
EN 50126
Aerospace
ARP 4761
Automotive
ISO 26262
Defence
MIL-STD-1629A
Energy & process
IEC 61508 / 61511
Medical devices
ISO 14971
Robotics
ISO 10218
Battery storage
IEC 62619
Normally required Commonly produced alongside

A guide to what these standards ask for, not a compliance opinion — your assessor decides what your programme owes. Where a row names two standards, it shows the combined expectation; the two are not identical, and the full page splits them out. Every ReliFrame app is available on every project whatever your sector, so nothing here limits what you can run. See each industry in full →

IEC 61508 IEC 61511 ISO 26262 EN 50126 ARP 4761 ISO 14971 ISO 10218 IEC 62619 MIL-STD-1629A GSN Community Standard MIL-HDBK-217F Telcordia SR-332 FIDES 2022 IEC 61709 MIL-HDBK-217Plus GJB/z 299C NSWC-11

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safety case today

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