“…Russell and Weinberger, soon after [3] established the difference between costs of preservation and costs of access, Ashley [4] and Sanett [5] focused on helping archivists to make their own calculations, while Kenney and Rieger they tried reformatting costs [6], Crespo and Garcia Molina on the design of the archival repository [7], Granger about emulation versus migration costs [8], as well as Dollar a reference in the archives domain [9], Holdsworth in his work about emulation [10], Lorie in the domain of digital information [11], Rothenberg [13], and Wheatley contribution on migration [14].…”