This paper is an Italian translation of the article Biedermann A., Bozza S., Taroni F. 2016, The decisionalization of individualization, Forensic Science International, 266, 29-38, doi: http://dx.doi.org/10.1016/j.forsciint.2016.04.029, with a foreword by Marcello di Bello (Department of Philosophy, Lehman College, City University of New York)