Smart City is the sum of the parts that involve technologies, information and actors. Information and Communication Technologies (ICTs) are given great prominence, but are only one of the parties to the smart cities’ development (non-exclusive, nor the most relevant). The information needs to be dynamic, available, with quality and organized, to be better offered and demanded. Finally, the actors, whether government, private or civil society are extremely importance for the realization of smart city. ICTs are essential, but the investment in human capital must occur for the smart city success. Perhaps this is a gap in the literature (and in practice) of smart cities, since, for the actor to act properly, this should be trained and encouraged in the actors relationship, with trust an unpreparedness, ignorance and discouraging of the actors involved can lead to a negative scenario of disinterest, discontinuity and, finally, make every project "smart city" lose its ability to integrate, to act and to contribute. The aim of this study is to analyze the smart cities as the result of the group from different parts: technology, information and actors, because, above all, the latter is often "placed in the background" when talking about smart city.