Abstract
A medical system for 21st century should enable surgeons to reliably provide medical services of high and ubiquitous quality. This will be achieved by sharing all the information with team members, objective and appropriate decision making and work sharing by the team, and making good use of “visualized” treatment process based on the information management, simulation, and database by taking advantage of IT. This means that to achieve the goal while optimizing the strategy toward the goal (a road map) by monitoring real-timely the pre- and intraoperative surgical planning and the operating condition of surgical devices under the control of the surgical strategy system.