Fault Tree Analysis
Relyence
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Visualise Risks
Simplify complex reliability with intuitive Fault Tree Analysis
Relyence Fault Tree Analysis software combines powerful analysis tools with an easy-to-use interface, helping engineers model, evaluate, and reduce system risk with speed and confidence.
Relyence Fault Tree Analysis (FTA) software makes it straightforward to model complex system failures and evaluate reliability.
With an intuitive graphical interface, you can quickly insert and edit gates and event types, while built-in fault tree and event libraries accelerate fault tree creation.
Import or export trees directly from Excel for seamless integration with existing workflows. Fully browser-based, Relyence FTA integrates smoothly with modules like FMEA, FRACAS, and Prediction, delivering a complete reliability solution trusted across aerospace, automotive, electronics, medical devices, and rail industries.
What our customers say...
“We’re really impressed with the FTA capabilities and the API integration that’s already available. - Peter S.”
Intuitive, browser-based fault tree analysis software built for today’s reliability engineers.
Why Choose Relyence Fault Tree Analysis?
Relyence FTA makes fault tree analysis simple, accurate, and efficient. With a modern browser-based interface, engineers can model and assess failures with ease.
Key Features:
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Intuitive UI: Build, view, and edit trees with a clean graphical interface.
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Reusable Libraries: Speed up analysis with event and full tree libraries.
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Excel Integration: Import/export fault trees directly from .xlsx files.
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Cross-Module Links: Seamlessly connect with FMEA, FRACAS, and Prediction.
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Industry Proven: Trusted in aerospace, automotive, electronics, rail, and medical sectors.
Relyence FTA key features
In addition to platform-wide capabilities, each Relyence module offers unique features developed for its specific analysis method. These specialist tools ensure engineers have the right functionality at the right time, helping achieve reliable, audit-ready results with less effort.
Relyence FTA offers users the following benefits...
Fault Tree Event Library
The Relyence Fault Tree Event Library enables you to build a central repository of commonly used fault tree events. Instead of recreating the same elements each time, you can pull directly from the library, ensuring accuracy and standardisation across your organisation’s analyses. This not only speeds up model creation, but also strengthens consistency — a crucial factor in regulated industries where audit trails and traceability are key.
The event library enables you to view where events are being used and updates made to library items can be pushed out to related fault trees, helping maintain alignment across projects.
The result is faster analysis, improved collaboration, and higher confidence in your results.
Fault Tree Library
The Relyence Fault Tree Library provides a central repository for complete fault trees that can be applied across multiple analyses. Instead of starting from scratch, engineers can insert pre-built trees — including gates, intermediate logic, and events sourced from the Event Library — directly into new models. This capability ensures consistency in how common systems, subsystems, or failure patterns are represented across projects. It also improves efficiency, as reusable trees drastically cut the time required to develop complex fault tree analyses.
When a library tree is updated, changes can be pushed out to the selected linked analyses, helping to maintain standardisation and accuracy organisation-wide. The result is faster modelling, better alignment across teams, and reliable, audit-ready analyses.
Import/Export Fault Trees
Building and maintaining fault tree diagrams in Excel can be a slow, error-prone process, especially as trees grow in complexity. Relyence makes it simple to import existing fault tree data directly from spreadsheets, eliminating the need to rebuild structures manually. The import process maps your gates, events, and logic into Relyence Fault Tree, preserving your original work while giving you access to advanced capabilities such as libraries, reporting, and collaborative editing. Once imported, your fault trees can be expanded, analysed, and reused across projects, with all the benefits of an integrated reliability tool.
This feature provides a smooth transition from Excel to Relyence, allowing you to retain your existing data while moving to a more accurate, efficient, and audit-ready platform.
Relyence FTA Core Features
As part of the fully integrated Relyence platform, the FTA module benefits from a wide range of shared features. These cross-module capabilities allow engineers to save time, avoid duplication, and ensure analyses remain accurate and consistent across projects. Many of the features most valued by our customers are built-in here — visit the features section for the full breakdown.
Customisable Dashboards & Drill‑down Reporting
Relyence Dashboards provide a comprehensive, customisable overview of your product or system by gathering and organising key data. Users can create unlimited, personalised Dashboards based on set permissions.Using the Dashboard Editor, add widgets such as charts, tables, and graphs for high-level visual insights—many with drill-down features that lead directly to detailed analysis files, highlighting specific data for in-depth review.
Our FTA module shares data with the following Relyence products
Relyence FTA Integrations
FMEA
Relyence FMEA software streamlines DFMEA, PFMEA, FMEA-MSR, and FMECA processes with intelligent features that save time and enhance consistency. With always-in-sync links to Control Plans and Process Flow Diagrams, Knowledge Banks for reuse, and built-in collaboration tools, it keeps your analyses accurate, compliant, and connected. Fully web-based, it’s the smarter way to manage FMEAs across teams and projects.
FRACAS
Relyence FRACAS software accelerates your reliability process with no-code customisations, allowing you to tailor failure reporting and corrective actions without IT support. It stands out by supporting industry standards such as 8D, DMAIC, and PDCA, as well as your own templates, and seamlessly connects with FMEA, Prediction, and Weibull tools to provide a single, unified reliability workflow.
FMEA-MSR
Relyence FMEA-MSR software helps engineers manage Monitoring and System Response in line with AIAG & VDA guidelines. It keeps risks visible and under control with dashboards, workflows, and audit-ready traceability. Integrated with DFMEA, PFMEA, and FRACAS, it ensures safety-critical systems remain reliable from design through operation — a modern upgrade from spreadsheets to collaborative, web-based risk management.
FMECA
Relyence FMECA software combines MIL-STD-1629A rigour with modern collaboration tools. It helps engineers identify potential failures, assess criticality, and prioritise corrective actions where they matter most. With dashboards, audit trails, and seamless integration across the Relyence suite, it brings clarity and efficiency to criticality-driven risk management.
DFMEA
Relyence DFMEA streamlines and improves design risk analysis, providing structure, speed, and consistency. Fully web-based, it helps teams move beyond spreadsheets with built-in workflows and approvals, keeping your projects on track. Knowledge Banks promote the reuse of proven functions, failure modes, effects, causes, and recommended actions, whilst SmartSuggest provides intelligent recommendations, enabling quicker and easier creation and maintenance of high-quality analyses.
PFMEA
Relyence PFMEA software streamlines process risk analysis with integrated Process Flow Diagrams and Control Plans that always stay in sync. With Knowledge Banks, SmartSuggest, dashboards, and workflows, your team can collaborate efficiently and maintain full traceability. Part of the Relyence FMEA suite, it connects seamlessly with DFMEA, FTA, and FRACAS for end-to-end reliability management.
Reliability Prediction
Relyence Reliability Prediction software makes it simple to calculate MTBF, model component reliability, and meet industry standards. With built-in part libraries, stress-based calculations, and integration across FMEAs, FRACAS, RBD, and Weibull, it turns raw data into actionable insights. Fully web-based, it’s designed for teams who need speed, accuracy, and collaboration in reliability analysis.
Relyence FTA Overview
Relyence Fault Tree Analysis (FTA) software streamlines the process of identifying and mitigating system risk. Designed with engineers in mind, its intuitive FTA interface allows fast construction of trees using gates and events, while built-in libraries provide a head start for common failure events. Editing is simple, whether you’re updating individual gates/events or restructuring large trees. Seamless Excel import/export ensures compatibility with existing data, while browser-based access means your team can collaborate securely from anywhere.
Direct integration with Relyence FMEA, FRACAS, and Prediction modules ensures consistent data flow across your reliability ecosystem. From aerospace to medical devices, engineers worldwide trust Relyence FTA to improve safety, reliability, and compliance with industry standards such as IEC 61025.
A selection of Relyence Fault Tree Analysis (FTA) software customers
Relyence FTA Methodology
Fault Tree Analysis (FTA) is a deductive, top-down approach to reliability assessment. By starting with a defined system failure — the “top event” — engineers systematically work downward through contributing events and logical gates to uncover underlying causes. This structured methodology helps identify vulnerabilities, prioritise corrective actions, and evaluate the probability of failure using both qualitative and quantitative methods. Widely recognised in international standards such as IEC 61025, FTA provides clear visual models of fault logic, making it invaluable in safety-critical industries like aerospace, automotive, electronics, and rail.
With Relyence FTA, engineers can apply this method more efficiently, ensuring that critical risks are identified, analysed, and mitigated before they impact real-world performance.
Relyence FTA... is it the right choice for you?
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