More than a tool. Risk analysis for the whole life of a system.
NextPSA is an innovative risk analysis platform built to support industrial organisations in their safety approach — making probabilistic safety analysis collaborative, adaptive and continuous, from first design through operation and every modification in between. Fault trees and event trees, quantified on a proven engine, shared by the whole team from any browser.
Supporting the people who keep critical systems safe — at every stage of the system's life
Risk analysis that lives with the system
A safety study should not be a document frozen at design time. NextPSA is built so that risk analysis stays alive alongside the system it describes: shared by the team, adapted as the design evolves, and kept current through commissioning, operation and modification.
Collaborative
One central, versioned repository where modellers, verifiers, analysts and reviewers work on the same reference model — with controlled access instead of copies travelling by e-mail.
How teams work together →Adaptive
Designs change, operating conditions change, questions change. Profiles, project containers and instant requantification let the analysis follow every variant without rebuilding the model.
Scenarios & variants →Continuous
Verification after every edit, traceable official runs and scriptable pipelines keep the study current and reproducible throughout the system lifecycle — not just at the next major review.
Verification & automation →Numbers you can defend in a review
A modern interface is only worth something if the results behind it hold up. NextPSA keeps every official run traceable, checks every model as you build it, and quantifies on a proven engine.
Traceable and reproducible
Every official run keeps its inputs, logs and downloadable results; models are versioned in a central repository. Re-run a study a year later and get the same answer, with the evidence attached.
Results & traceability →Checked as you model
Automated consistency checks run after every change and flag errors, warnings and orphaned elements while you are still editing — not at quantification time, and not in the review meeting.
What gets checked →A proven engine
Official runs execute on RFTA, the quantification engine developed by EdgeMind and validated against an independent reference engine on every release — on your full model, common-cause groups and mission phases included.
How quantification works →Everything a risk analysis workflow needs
Model, quantify, verify and scale up — from a single fault tree to a full study that evolves with the system — in one place.
Fault & event trees, one editor
Model component-level failure logic and system-level accident scenarios without switching tools — fault trees and event trees share the same modern editor, with reusable elements across models.
- Gates, basic and house events, and CCF groups
- Initiating events, branches and outcome sequences
- Real-time preview quantification while you edit
Results you can read at a glance
Quantify, then explore minimal cutsets, importance measures and uncertainties in an analytical dashboard — and re-quantify in one click when the model changes.
- Minimal cutsets ranked by contribution
- Charts and Excel export for reporting
- One-click re-quantification from the results
From single models to full studies
Assemble individual models into project containers, explore variants with profiles, and quantify an entire study in one batch — with automation pipelines to script multi-stage runs. The study adapts as the system does, and can be re-run at any point in its life.
- Project containers that assemble compound studies
- Profiles for what-if variants without touching the base model
- Batch quantification and scriptable automation pipelines
Built for the whole team, not one workstation
One shared platform for modellers, verifiers and analysts, over the whole life of a system: centralised models, controlled access, automated studies — and nothing to install.
Team collaboration
A secure cloud repository keeps models centralised with controlled sharing and versioning. Modellers, verifiers and analysts work on the same reference — no files by e-mail.
Every model in one place
Fault trees, event trees, project containers and profiles — all in a single, consistent environment, so there is never a question of which copy is the reference.
Work from anywhere
A full risk modeling and analysis environment in the browser. Nothing to install, configure, or maintain — open a link and start modeling.
Secure by design
All traffic is SSL-encrypted and data is hosted on secure, EU-based servers. Desktop and on-premise deployment available when data must stay inside your walls.
Open formats, no lock-in
Models are stored in open XML and exchanged through Open-PSA MEF; results export to Excel and CSV. Your data stays yours, whatever tools you use alongside.
Continuous analysis
Profiles, batch quantification and scriptable pipelines turn recurring studies into repeatable runs — so the analysis is refreshed after each modification, not rebuilt at every periodic review.
Ready to make risk analysis a living part of your systems?
Book a 30-minute demo to see how NextPSA supports your safety approach — collaborative, adaptive and continuous, from design to operation. Free academic licenses available.