the invention relates to onboard failure warning management systems on aircraft , or flight warning systems . traditionally , the logic of these systems refers to procedures to be executed by the crew in response to warnings . modifications , however minor , to the procedures involve a new development that can be installed on the airplane computer only as part of a costly maintenance procedure , given notably the need to carry out exhaustive tests on the application . the invention introduces the concept of tasks defined by a set of variables , notably the warning and the procedure in which the task is executed , its category , its priority level and its status . thus , the computer programs can be organized in modules that call the tasks to be executed , the parameters of said tasks being defined in a configuration table that can be updated as the procedures change during simple operation maintenance procedures .