Page 371 - Shaping smarter and more sustainable cities - Striving for sustainable development goals

Presentation thin‐client, CDE,
layer Win32, JVM etc.

SSC User
interface

SSC service
Application Logic analysis and
provision

Data access
Data Access
interface

SQL, DRDA,
Data Store
ODBC

Figure 7 – A multi‐tier SSC ICT architecture from a software engineering point of view

7.1.2 A communications view of the SSC ICT architecture

The communications view examines various ways of structuring communications facilities to
simplify the SSC ICT planning and design. It examines the networking elements of the architecture
in the light of geographic constraints, bandwidth requirements, and so on. Various alternatives can
be followed to establish communications between SSC ICT architecture subsystems:
1. Cable networks (fiber‐optic, coal‐based networks within the city, etc.) installed in SSC;

2. Wireless networks (WiFi, WiMax, GSM, 4G mobile networks, etc.) installed in SSC;
3. Peer‐to‐Peer connections between SSC ICT architecture sub‐systems;

4. Distributed Object Management (DOM);

All the above alternatives are organized in three groups regarding the network geographical range
(Figure 8):
1. Global or wide area networks (i.e., across the SSC);

2. Regional area networks (i.e., neighborhoods of the SSC);
3. Local area networks (i.e., within a building of block of the SSC);

ITU‐T's Technical Reports and Specifications 361