Uncertainty and Bayesian Inference Video

We are proud to introduce our first SISEngineer.com original video. This video gives a brief non-technical…

Fail Safe Regulators

The humble airset filter regulator does not get a lot of love.  Relegated to a lonely…

Functional Safety for Autonomous Vehicles (Part 3)

Today’s post finally wraps up SIS Engineer’s initial foray into the strange and exotic world of…

SIS Survivability and Fire Safety

In my experience, few subjects cause more confusion and misunderstanding in the instrumentation and SIS arena…

Human Error and Systematic Failures

Today I want to highlight an excellent paper “Improving Barrier Effectiveness Using Human Factors Methods” recently…

Bayesian Coin Flipping

The following is a quick example illustrating how the Bayesian updating process can be used to…

Functional Safety for Autonomous Vehicles (Part 2)

In part 1 of this article we introduced the autonomous vehicle functional safety standard, ISO 26262. …

Functional Safety for Autonomous Vehicles (Part1)

When they are not spontaneously combusting or crashing into parked cars (again, again, and again) autonomous vehicles…

Uncertainty in SIL Calculations

Some time ago, I ran across a complex Safety Instrumented Function (SIF) that had a proof…

Getting Started in SIS Cybersecurity (Part 2)

In part 1 of this article, we covered the various standards and guidelines that are available…