A human machine interface (HMI) is exactly what it sounds like—the meeting point between a live person and a piece of industrial equipment. This point is critical for operators to be able to easily see what's happening in a process, make a quick decision, and take action. When the HMI physically meets the pane of glass, something has to be the "brains behind the beauty"; something has to control and manage those applications for the operator to see. The brain needs to not only manage and deliver those HMI applications, but also things like camera feeds, web applications, and other industrial or office software. The HMI will let the human know that something is stuck or holding up production.