Abstract: Method of interaction of a computer system with a user, including: a representation, in a display area (11), of a plurality of items of information each comprising a plurality of values, the representation being graphical representation (1111, 1121) in at least two dimensions along coordinate axes (161, 162); a display, in the display area (11), of a mobile marker (21) allowing the user to choose a position with the help of a pointing device: an evaluation, by calculating the distance of the chosen position with respect to the axes (161, 162) of the coordinates of the chosen position; calculation, on the basis of the coordinates, of a pair of values, and; triggering, on the basis of the pair of calculated values, of a specified processing.