The barrage of data overload is threatening the ability of people to effectively operate in a wide range of systems including aircraft cockpits and ground control stations, military command and control centers, intelligence operations, emergency management, medical systems, air traffic control centers, automobiles, financial and business management systems, space exploration, and power and process control rooms. All of these systems need user interfaces that allow people to effectively manage the information available to gain a high level of understanding of what is currently happening and...