Typical Common Cause?

Background A few weeks ago, I commented on an interesting LinkedIn thread about independence and common…

System Safety and PRA Resources

[Updated Dec 2021] This is a list of free handbooks, guides, and textbooks covering all of…

Uncertainty and Bayesian Inference Video

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

Against Software Reliability?

Provides background on software reliability and discusses the challenge of validating high reliability software

A Bayesian Game of Chance

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

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…

Uncertainty in SIL Calculations

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

Hierarchical Bayesian Prior Use

I presented my paper “A Hierarchical Bayesian Approach to IEC 61511 Prior Use” [full paper] at the…

Global Congress on Process Safety – Highlights

The 14th Global Congress on Process Safety (GCPS) was held on April 22-26, 2018 in Orlando,…