We have participated in the debate organized by El Mirador La Vanguardia about the new urban model of Barcelona with Vicente Guallart, chief architect of the City of Barcelona; Albert Civit, manager of Urban Habitat of the City of Barcelona;Lluís Comerón, dean of the Board of Architects of Catalonia; Giovanna Carnevalli, director of the Mies Van de Rohe Foundation; Antoni Casamor, partner at BCQ and Miguel Roldánpartner at Roldán i Berengué Architects. The use of new tools (Big data, Open Data) for a better urban management and the need to work on a metropolitan scale have been the plotlines of our participation in the debate. We also discussed about the city model and its most significant projects (Glories, Sagrera, Tres Turons, Montjuïc, etc.).