using a product. These sensations dominate so much the UX curve, to generate spikes or
dips depending on how positive or negative such feelings are. The UX, therefore, represents
a likelihood index of the user willing to continue to use a product. Ansuini [2] defines a
legacy application-LA-as an information system of value inherited from the past. Nowadays,
most of the companies make use of LAs, which on one side are characterized by high …