High Reliability Organizing (HRO) developed as a means to make an organization or unit stronger. In its natural state we historically found it in environments of danger or uncertainty such as military combat, firefighting, or business activities. While proactive components (plans and anticipation) and reactive components (after action reviews) are necessary parts of HRO, High Reliability itself derives from the ability of the organization and individuals to interact in real time with uncertainty or threat from the external environment.
HRO describes on the organizational level the structure necessary for High Reliability, on the social level the collaboration found in response to threat, and on the individual level the satisfaction of problem solving while modulating threat responses. These three levels facilitate the free flow of information and the migration of action for a quick response to, and interaction with, surprise or accelerating events. The High Reliability Organization emerges from the interactions between people responsive to the environment in an organization that allows this.