However, such a heterogeneous field of application makes the
identification of solutions capable of satisfying the requirements
of all possible application scenarios a formidable challenge. This
difficulty has led to the proliferation of different and, sometimes,
incompatible proposals for the practical realization of IoT systems.
Therefore, from a system perspective, the realization of an
IoT network, together with the required backend network services
and devices, still lacks an established best practice because
of its novelty and complexity. In addition to the technical
difficulties, the adoption of the IoT paradigm is also hindered
by the lack of a clear and widely accepted business model that
can attract investments to promote the deployment of these
technologies