Finally, concerning the financial dimension, a clear business
model is still lacking, although some initiative to fill this gap has
been recently undertaken [10]. The situation is worsened by the
adverse global economic situation, which has determined a
general shrinking of investments on public services. This situation
prevents the potentially huge Smart City market from
becoming reality. A possible way out of this impasse is to first
develop those services that conjugate social utility with very
clear return on investment, such as smart parking and smart
buildings, and will hence act as catalyzers for the other addedvalue
services [10].