The term "modus operandi" is a Latin term that describes an individual or group's habitual way of operating, which represents a discernible pattern. A modus operandi (commonly abbreviated as "M.O.") is mainly used to discuss criminal behavior and is often used by professionals to prevent future crimes. Modi operandi may change over time, particularly by adapting to experiences as well as changing values. Studying patterns, not just those of criminals, can aid individuals who study and pay attention to them, such as investors.