We love articles that start out by saying "The ergonomics department at BMW headquarters in Munich could turn fastening a Velcro strip into a four-step process with footnotes, …"
Jump to the article here. It has some fun with how starting some cars has gone so far beyond simply "turning a key".
Human Factors is a field of study that deals primarily with human-machine interface, focused on the psychological, social, physical, biological and safety characteristics of a user and compares it to the system the user is in.
At Humantech, we typically describe Human Factors as dealing with everything above the shoulders (decision making, etc.) , while traditional ergonomics deals with things below the shoulders (push/pull forces, reach distances, etc).