MMI (Man-Machine Interface System) was developed as a data link communication device for Oceanic ATC (Air Traffic Control) to evaluate its specification and functions on the assumption that a satellite data link service is introduced in Oceanic ATC fields. Prior to the development, we investigated a present air traffic controller's work load and ATC phraseologies in order to classify Oceanic ATC data link messages. In regard to the development, several modifications were conducted according to the results of evaluation tests in cooperation with air traffic controllers. This paper reports the development of MMI and results of evaluation test.
