Resumen de Hic sunt leones.: Indicazioni sulla scelta, l'installazione e la valutazone dei Web Scale Discovery Services

Danilo Deana

• The article aims first of all to illustrate the reasons that led to the creation of the Web Scale Discovery Services and that favored their diffusion among Italian academic libraries. Secondly, the costs and benefits of their adoption are examined to conclude that these are applications that have not kept their promises.