Page 52 - Redefining smart city platforms: Setting the stage for Minimal Interoperability Mechanisms - A U4SSC deliverable on city platforms

– oneM2M Release 2 and Release 3 set of specifications. oneM2M Release 2 has been formally
approved as a series of ITU-T Recommendations under the Y.4500 series. oneM2M is a
partnership project that specifies a common service layer for IoT. oneM2M is applicable to
many verticals, including smart cities. oneM2M specifications cover requirements, architecture,
APIs, security, interworking and data models. Although not chartered to produce open source,
there are several open-source implementations supporting oneM2M, including Eclipse OM2M
and S. Korea OCEAN.
34, 35
– DIN SPEC 91357 Reference Architecture Model Open Urban Platform (OUP) (DIN, 2017).
– SynchroniCity: Delivering an IoT enabled Digital Single Market for Europe and Beyond –
Guideline for SynchroniCity Architecture (Gluhak et al., 2018).

– SynchroniCity: Delivering an IoT enabled Digital Single Market for Europe and Beyond -
Synchronicity Reference Architecture for IoT Enabled Smart Cities, Update (Maggio et al., 2018).
– The European Interoperability Reference Architecture (EIRA) Library of Interoperability
Specifications (ELIS) repository of technical specifications based on open standards defining the
interoperability requirements of the architectural building blocks (ABBs) (European Commission,
n.d.).

– SALAR Ten Proposed Principles for IoT-systems – best practices for purchasing / achieving IoT-
systems or IoT capabilities. 36
– ITU-T Recommendations Series Y: Global information infrastructure, Internet protocol aspects,
next-generation networks, Internet of Things and smart cities.
37 38
– ISO/IEC JTC1 Study Group on Smart Cities report.
39
– SystEmic Standardization apPRoach to Empower Smart citieS and cOmmunities “ESPRESSO
Project” Definition of Smart City Reference Architecture (Cox et al., 2016)

– ETSI GS CIM 009 V1.1.1 Context Information Management (CIM); NGSI-LD API.

8 Useful results from the work on MIMs

The MIMs elaborated on in this report are based on the following principles:

– The set of Minimal Interoperability Mechanisms is designed to answer the questions: “What
are all the basic building blocks needed to enable a city to set up an effective data-sharing
ecosystem?” 40

– They are Minimal to ensure no unnecessary complexity or time-to-implement, with the aim that
the cost to implement (staff time, software, hardware) will be affordable by small and medium-
sized cities.

42 Redefining smart city platforms: Setting the stage for Minimal Interoperability Mechanisms