Abstract: A method and system for communicating and sharing information for an aircraft are disclosed. In one aspect, the method includes identifying a situation from among a set of predetermined situations and obtaining, from a data structure recorded beforehand, a first set of information elements associated with the identified situation. The method also includes determining, from the first set of information elements, and from pieces of information recorded beforehand, a set of pieces of information unavailable in the first system and establishing at least one first request to be sent from the first system to at least one second system. The method further includes sending the at least one first request from the first system to the at least one second system.

Abstract: The invention relates to a method and a device for calculating a time window for a time constraint of arrival of an aircraft at a given point, the aircraft receiving wind predictions and including a sensor for measuring the wind. The method includes a calculation of a first time window, and the calculation of an overall confidence index having the determination of a first confidence index on the basis of a deviation between wind predictions and wind measurements performed by the aircraft, the calculation of a margin for the time constraint on the basis of the overall confidence index, and the calculation of a second window on the basis of the first time window and of the calculated margin.