Provision of infrastructure for the best use of IT applications for the modern and efficient management of e-services. Respond to the new needs of PCDs and make it possible to achieve a significant simplification of existing infrastructures, reducing the number of elements to be managed, simplifying their management and reducing energy expenditure. Communication Infrastructure, CPD’S Computing and Technological Buildings: Evolutionary adequacy of CPD’S; Uninterrupted power supply systems; Groups; Equipment and room temperature control systems; control and monitoring of CPD’S; Physical security; Electrical systems. Simplification of user posts. Telecommunications equipment for the interconnection, control, supervision and optimisation of the telecommunications network. Redundant electronics equipment. Corporate database backup and replication systems. Videoconference, etc.