Errors are unintentional deviations from goals, rules, and standards.[1] Error management (EM) starts after an error has occurred; it attempts to block negative error consequences, to reduce their negative impact, or to deal quickly with error consequences once they occur,.[1][2] It further involves “controlling damage quickly (including reducing the chances of error cascades), and reducing the occurrence of particular errors in the future (secondary error prevention), as well as optimizing the positive consequences of errors, such as long-term learning, performance, and innovations.”