It is easy to compare the development path virtual ASBUs operating system easily gotten each time continuously. An important goal to aim toward the future ATM system, meets the same standards as one is collecting ideas how the execution of a group of leading international aviation, and developed a unique focal point together, such as a Single European Sky Air Traffic Management Research (SESAR) Programme of the European Union, the concept of Next Generation Air Transportation System (NextGen) of the United States and countries for Collaborative Actions of Renovation vision Air Traffic Systems (CARATS) in Japan.