European Telematic Open Procedure In Three Lots, Pursuant To Articles. 71 And 108, Paragraph 2, Lett. B), Of The Legislative Decree. 31 March 2023, N. 36 And Ss.Mm.Ii., For The Assignment Of The Verification Service Pursuant To Art. 42 Of The Legislative Decree. 36/2023 Of The Technical-Economic Feasibility Project And The Executive Project, With Bim Modeling And Information Management Methods And Through The Use Of Reduced Materials And Techniques