Page 51 - Redefining smart city platforms: Setting the stage for Minimal Interoperability Mechanisms - A U4SSC deliverable on city platforms

– Security and privacy by design.
– Availability of reference implementations to foster and simplify the adoption in the cities and
communities.

– Architecture modularity that provides the possibility to implement any component with different/
proprietary technologies.
– Based on global, standard-based open APIs to enable southbound/northbound interoperability.

– Data harmonization and global standards-based semantic interoperability through the adoption
of common, linked data models.

– In this document the following parts are further discussed:

• Data models and Context information management: Context information management
realizes the Northbound open APIs and the Southbound APIs as a high-level open API. The
Data models provide the harmonized models.
• Marketplace: discusses the different marketplace API and transaction management
(commercial as well as non-commercial).

• Data harmonization makes sure that data models can be harmonized to shared data models
and between different standards.

Figure 13: High-level architecture framework model

7.3 Recommended specifications and frameworks

The following is the list of specifications that are recommended when developing a smart city
architecture:

– Recommendation ITU-T Y.4472: Open data application programming interface (APIs) for IoT
data in smart cities and communities (ITU-T, 2020).

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