Device and method for assisting in monitoring the mission status of at least one aircraft

A method for assisting in monitoring the mission status of at least one aircraft, through the monitoring of at least one operational criterion of a mission of said at least one aircraft during the execution of said mission,

• the method being implemented by an electronic device for assisting in monitoring the mission status of said at least one aircraft, and comprising, for each operational criterion, the following steps:
• determination of a polynomial function representing said at least one operational criterion, each monomial of which is a product of constants and/or variables, each variable being a characteristic quantity of a set of N characteristic quantity(ies) associated with said operational criterion;
• by partial derivative of said polynomial function, determination of the impact of the variation of each characteristic quantity of said set associated with said operational criterion on the value of said operational criterion;
• and
• return of the impact of each characteristic quantity, via a human-machine interface, to an operator of said at least one aircraft, conducive to using said impact to identify at least one source of execution anomaly of said mission.