President and CEO of UCDS Ian Nimmo discusses the history of HMI (Human Machine Interface) Design. He explores the evolution of HMI starting back from the processing industry when operators used analog instrumentation on control panels, all the way to describing the benefits of modern HMI today. The ultimate goal of HMI today is to make sure the operator can see what’s happening and determine the most important things that need their attention at any given time. Alarms should be prioritized and separated into different levels so the operator can have the big picture. Human ergonomics should also be included into HMI such as the right colors and readable text size. Detection diagnosis and response improve by 50% using these techniques.