Page 19 - Enabling digital transformation in smart sustainable cities – Master plan
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Enabling digital transformation in smart sustainable cities – Master plan
Figure 3: Multitier SSC ICT meta-architecture
Source: ITU-T Supplement 27 to ITU-T Y.4400 series
The corresponding indicators for each category are detailed in ITU-T Y.4903.
c) Setting the framework for ICT architecture of smart sustainable cities
The architecture of smart sustainable cities has been defined in ITU-T Y-Sup.27. At a high level, a
meta-architecture consists of five layers (as depicted in Figure 4), which focus on the integration
between natural environment and soft infrastructure of urban spaces, while SSC services run
across these layers.
An SSC can also be considered as a system of subsystems. With regard to its technical definition,
it can be viewed from different perspectives. Figures 3 and 4 demonstrate the communications
view of the SSC ICT architecture, based on a physical and an information flow perspective,
respectively. Both perspectives of this view are multitier.
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