Asistecsa is a leading Chilean company in the soil mechanics field. It has participated in major road projects, ports and construction in Chile, as well as providing consultancy services abroad. Asistecsa uses Una Base, a 4D solution developed by UNA to manage and control all the processes from the receipt of client orders to the payment of provider invoices.uses Una Base, a 4D solution developed by UNA to manage and control all the processes from the receipt of client orders to the payment of provider invoices.