Is My Risk Matrix Evil?

My name’s Simon Di Nucci.

I’ve been practicing as a system safety engineer for 25 years. I’ve worked in many domains, such as aircraft, ships, submarines, sensors, and command and control systems.  I've worked on rail and air traffic management systems, and I've done lots of software safety.

This is one of a series of webinars that I have run on poular subjects.  In this session, we will cover:

1. The Most Popular Questions about Risk Matrices.

2. (Mil-Std-882E) Risk Matrix Problems & How to Fix Them.

The risk matrix is based on two intersecting factors:

• The likelihood that the risk event will occur; and

• The potential impact the risk event will have.

In other words, it's a tool that helps you visualize the probability versus the severity of a potential risk.

It brings together many different definitions & ‘measures’:

•Severity (e.g. harm) & likelihood:

• Risk rating; and

• Risk acceptability*.

*It may do so (in)consistently!

Other webinar topics include: Foundations of System Safety, Hazard Identification, Causal Analysis, Failure Modes and Effects Analysis (FMEA), Hazard and Operability (HAZOP) studies, Software Hazard Analysis & Resolution in Design (SHARD) Studies, Hazard Logs and Hazard Tracking Systems, Workplace Hazards Analysis, System Safety within a Systems Engineering framework, and Safety Audit.