Systems and methods for communicating avionic data to a non-avionic device, the method includes the steps of: receiving a flight command from a non-avionic lightweight client； determining or receiving physiological data (for example gaze tracking, heart rate, breathing rate, etc.) and/or biometric data associated with the wearer of the non-avionic lightweight client； making the insertion of the flight command into an avionic system conditional on the meeting of predefined conditions relating to the physiological and/or biometric data. Developments describe the use of distance and/or path between lightweight client and cockpit, physiological parameter management, the management of flight commands in a plurality of elementary requests, notification techniques and/or audio and/or visual rendering on various lightweight clients (for example earpiece, watch, telephone, tablet, glasses, etc.). Some software aspects are described.
