The link you followed will bring you to this page:

https://books.google.it/books?id=kM-BDwAAQBAJ&pg=PA1&dq=sistema+informativo+aziendale+definizione&hl=it&sa=X&ved=2ahUKEwiv49nF-Y7uAhXNDOwKHYQdDiYQ6AEwBHoECAYQAg#v=onepage&q=sistema%20informativo%20aziendale%20definizione&f=false