Abstract: A method which uses a terminal comprising a processor, a screen and a keyboard, comprises step by step breakdown of all the information ("checklist") to be structured into subsets and identification of their structure, grouping together by similar structures of the subsets into objects ("blocClist", "tiCL", "tiblocCL", "remark", "item", "Sdeb", "verif", "Sfin"), input into the terminal of each object, in the form of a graphical symbol representing a node, and of the characteristics thereof, input into the terminal of link type symbols connecting two objects indicating a hierarchical include relation between two objects, translation by the terminal of the graph thus derived into a structure model expressed in a computer language and monitoring of the consistency thereof. The method applies notably to the management, by an on-board computer in an aircraft, of the lists of tasks to be performed during the phases of piloting.