the invention concerns a method and a system for determining a scent or taste profile of a user consisting in : storing for each of a set of products chosen among products for which a database contains smell of taste prints constituted by a set of measurements given by smell or taste electronic sensors , a rating given by the user ; and automatically calculating weighting coefficients constituting said profile and respectively affected to said sensors , by successive approximation of sets of weighting coefficients leading to minimizing the sum of the quadratic errors over the set of satisfaction notes .