paitron – Functional Safety Suite

Automated failure analysis via simple drag & drop

Automate safety analyses

paitron acts as a spell checker for engineering models, providing a “one-click” approach for safety assessment. It can be used to conduct FMEA, FMECA, FMEDA & unlike other solutions, paitron reuses already existing digital models from standard modeling environments like OrCAD & Matlab Simulink.

Thus, the overhead for modeling decreases significantly as no additional test model is required, while enabling a continuous & seamlessly integrated workflow!

paitron process flow

No magic, nor probabilistic methods are used to derive the results. Formal methods and theorem proofing enable white-box reasoning and the highest quality. Therefore, receiving a Concept Report by Tüv Süd (for ISO 26262 and IEC 61508).

Generic Approach

Whether E/E, PL, or interdisciplinary systems covering mechanics, hydraulics, and pneumatics, paitron will support you.

At a glance

Quick Specs

relevant for


ISO 26262

Originated in 2011 as a functional safety standard for the automotive industry. The latest revision is in 2018. Distinguishes critical systems along ASIL A-D. Mandatory FMEA/FMEDA.

IEC 61508

The “mother of” functional safety standards was published in 1998. With its latest revision in 2010, it is mainly applied in the process industry. Categories are SIL 1-4. Mandatory FMEDA.

ISO 13849

Published in 2015, ISO 13849 is specifically applicable to control systems of safety-related systems, e.g. in robotics. Provides five classes to determine the safety of a system, PL a-e. FMEA/FMEDA/FMECA is mandatory.

and many more...

Whether medical devices, marine systems, trains, or aerospace, functional safety analyses are prescribed globally.



Matlab Simulink

The modeling and simulation tool for nearly all use cases. With libraries ranging from the hydraulic to the electronic domain, Matlab Simulink is used across industries. Matlab Simulink 2019a onwards is supported.


The freeware tool by Analog Devices is the go-to software to simulate electronic circuits. Features are modeling, simulation & generation of Bill-of-materials. The latest version LTspice XVII is supported.


Developed by Cadence, OrCAD offers functionality from modeling, and simulation to layouts.

and many more...

Altium Designer, Mentor Graphics DxDesigner, and many more tools are supported by paitron. In case of no existing interface to your tool, we are happy to provide you with the proper implementation.

capable of



FMEA is an inductive approach to assess a system’s behavior under fault. The bottom-up analysis allows inspecting possible failure modes methodologically.


Failure modes, effects, and criticality analysis put emphasis on the severity and occurrence rate of failure effects.


Failure modes, effects, and diagnostic analysis is an extension to the FMEA to reflect the diagnostic capabilities of a system.

and many more...

Furthermore, Fault-tree analysis (FTA), Root-cause analysis (RCA), and many more analyses are employed in the industry. In case of an individualized analysis, please contact us for support.

Top of the line

paitron in numbers


Satisfied Clients

Supported Tools

Cases Analysed

Our services

What do we offer?

Proof-of-Concept Projects

Not sure how paitron fits into your engineering processes? No problem, we at modelwise will execute a proof of concept and support you in piloting and evaluating the benefits.

Tool & Process Consulting

With our expertise of engineering processes, we will support your change project and advise tools and processes always aiming for highest quality and efficiency.

What to expect in the next steps?


Pre-study & process analysis


Proof of concept


Use in production

Looking for something else?


What’s happening?

​Where did ARP 4761 go wrong?

​Where did ARP 4761 go wrong?

In this article, we compare a manually generated expert failure modes and effects analysis (FMEA) taken from SAE ARP4761 with an automatically generated one, produced with paitron and find where the ARP 4761 went wrong.

read more
Share This