Page 26 - U4SSC Data and API requirements for centralized smart city platforms

The APIs must be monitored for low-energy performance (Fremantle et al., 2015), while an API
management strategy (Niehaves et al. 2019) is needed, to define:

1) The alignment to an existing SC strategy (Chen et al. 2010, Niehaves et al. 2019).

2) The API co-design process with the SC stakeholders (Deloitte, 2018).
3) The API openness to technological changes, data strategies and security requirements (Gupta
et al., 2020).

The Technology layer includes the SCHub infrastructure (Figure 10), which contains the Microservices,
the Gateways and the connections (APIs) of the system overview and they are determined as
follows:

1) The SC real time data engine, which collects and processes data via the API layer.

2) The support services for configuration, user and ID management, and SC public portal operation.
3) The API management service.

4) Integration services that connect the SCHub with third-party gateways (e.g., banking, e-mail,
SC platforms).
5) Storage for its configuration and software for the support services, and potentially for data flows.

6) Standards with requirements to connect to the SCHub.

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