Fault Tree Analysis Software

The Logical Approach to Fault Tree Analysis

mission critical catastrophic failures

access powerful computational calculations via a simple graphical interface

FTA Software Designed By Industry Experts


Access your Fault Trees anywhere, anytime, any device
fault tree analysis diagram shown on desktop and laptop computer terminals

Calculate your most important risk and safety metrics

define the behaviour of your events using an extensive list of input models

Log in online anytime, anywhere on your Mac, PC, tablet or phone to access your Fault Trees

Choose between our on-premise FTA license, which is installed on your own servers OR our cloud based Fault Tree Analysis application, functionally they’re identical.

Fault tree analysis software dashboard view on imac laptop showing top 10 highest probability events, unavailability gates and fault tree cut sets.
fault tree analysis drag and drop graphical editor
Drag & Drop Icons

Identify your undesired events, calculate the probability of those events occurring and then take the steps necessary to eliminate or mitigate the occurrence fast, using our intuitive graphical drag and drop editor to create diagrams to represent and then evaluate your undesired events.

fault tree analysis, exact calculations or simulation engine
Powerful Calculations

Put our powerful computational engine to work for you. Quickly calculate your most important risk and safety metrics. Choose to run exact calculations or powerful simulations, select from a wide array of calculation results including: unavailability; failure frequency; importance measures; and cut-set analysis.

get actionable fault tree analysis results i.e. probability of occurrence
Delivering Results

Deliver your results in a meaningful, interpretable, actionable format.  Whether they choose to use Relyence’s powerful report generator or dashboard overview your users can customise the results generated to suit their needs. (e.g. highest probability events; most important gates; and minimal cut sets).

Fault Tree Analysis (FTA)

Relyence FTA places you firmly in the driving seat. Gaining a greater understanding of the sequence (combinations of contributing factors) of events required to trigger an undesired catastrophic event and the probability of the events occurring; empowers you to take the necessary actions required to mitigate or even eliminate the probability of occurrence.  This top down approach to critical risk assessment equips organisations with a powerful, valuable insight into the behavioral characteristics of their products and processes. Being able to provide our users with these results quickly and easily enables our customers to respond with the necessary action steps quickly and efficiently.

Relyence Fault Tree Analysis (FTA) product icon

Relyence FTA enables you to easily create diagram models to analyse safety and risk for a variety of applications: business processes; production processes; hardware failure; software failure; human error; and a combination thereof. If you can draw it (which you can) we can calculate it!

Commonly used gates:
AND gate;
Inhibit gate;
NAND gate;
NOR gate;
NOT gate; and
OR gate.

Speciality gates:
Priority AND gate; and
Voting gate.

Transfer gates:
Exclusive OR gate; and
Transfer gate.

Event Types:
Basic events;
House events;
Undeveloped events; and
Repeated events.

Users perform complex fault tree calculations simply by dragging and dropping a variety of graphical icons (that represent logic gates and event types) to form a diagram, Relyence powerful computational engine does the rest.

Event icons let you describe your event input types accurately to perform precise risk analysis. Event types consist of:

I don’t know which is better, ‘How easy it is for us to create fault trees?’ Or, ‘The format in which the results are presented to us?’ We use to do fault tree analysis when our clients wanted them, now it’s us that want them!

Take A FREE Test Drive

You’re just one simple form away from trying Relyence for yourself – The Relyence FTA module is available for you to try, simply click on any “Try Relyence For Free” button. You DON’T need to enter any payment details, we’re just happy for you to try it!

When you click “Try Relyence For Free” you’ll be re-directed to our web-based application, here you’ll see the form pictured above, this is where you create your login details and select which modules you’re interested in.

Please Note: You can use our web based FTA Cloud Solution to evaluate our installed On-Premise solution; as they’re functionally identically.

14-day free trial

Try every feature, add additional users, no credit card required

There’s nothing to download or install.

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