To enable a common operational picture between all related aviation stakeholders, a collaborative environment for system-wide flight and flow information exchange is required to improve strategic planning. Therefore, a globally harmonized System Wide Information Management (SWIM) for sharing a richer set of information before and during the flight between related stakeholders has been structured by the International Civil Aviation Organization (ICAO). However, due to different communication and process approaches between air and ground systems, it is difficult to assure the 4-Dimensional Trajectory (4DT) sharing and negotiation between an airspace user and corresponding air traffic management service providers. To clarify the operational concept and explore the impacts to different stakeholders and various systems, the project of international demonstration had been conducted. The Electronic Navigation Research Institute (ENRI) joined this project as a research and development leader of Japan Civil Aviation Bureau (JCAB). In this paper, based on the proposed Air-Ground SWIM integration architecture, the observations and analysis of technical experience consisting of scenario proposal and function development for the series of operational changes that will occur through the implementation are reported. Moreover, the collaborative operation process and coordination mechanism in the post-departure phase between related actors and systems to achieve 4DT sharing and negotiation are clarified. Finally, the considerations and challenges for flight and flow information exchange to include interactions of related stakeholders, systems, and services through a collaborative environment are discussed.
