The projects shown during the 5th IABR (International Architecture Biennale Rotterdam) "Making City", hold in Rotterdam in 2012, have treated the topic linked to the development of some specific contests, through the individuation of many factors which influence the urban planning, as global tendencies, cooperation and smart connections: these are necessary strategies to define a Smart City. They are connected not only to the infrastructures and to digital connections, but also to the business, understanding of technology, users for urban planning and control of features from which depends the success of future cities. From the integration’s ability of Architecture, urban planning and landscape architecture with other matters, are emerging new opportunities to create this "Smart City model" and to the new social developments. This article summarizes researches and projects presented during the 5th IABR: Making City in the section "Smart Cities - Parallel Cases II"