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List of figures

Figures
Figure 1: a. Overview of an SCP and external systems/platforms (ITU, 2018), b. a generic SCP
logical architecture ............................................................................................................................................4
Figure 2: IDS System Layer (IDS RAM, 2023)..................................................................................................5
Figure 3: Gaia-X conceptual model (Gaia-X Architecture Document - 22.10 Release, 2023) .................7
Figure 4: Overview of the SAREF ontology (SAREF, 2024) ...........................................................................8
Figure 5: SAREF4CITY ontology model overview (SAREF4CITY, 2020) .....................................................9
Figure 6: Digital Hub (U4SSC, 2022) .............................................................................................................11
Figure 7: The concept of the SC Hub ............................................................................................................12
Figure 8: System Overview ............................................................................................................................14
Figure 9: SCHub Architecture ........................................................................................................................15
Figure 10: The technology layer of the SCHub (Anthopoulos et al., 2022) .............................................17
Figure 11: SCHub multipartner connections enabling several use cases (Anthopoulos et al., 2022)
............................................................................................................................................................................18
Figure 12: Data flow via the SCHub ..............................................................................................................19
Figure 13: Data collection of common property measurements with the unified SCHub API ..............23
Figure 14: Sensor measurement data discovery with the unified SCHub API .........................................24
Figure 15: Sensor measurements retrieval with the unified SCHub API ...................................................25
Figure 16: Reference framework of a SCP (ITU, 2018) ................................................................................27

List of tables

Tables

Table 1: Results from scientific resources (January 2020) ............................................................................3
Table 2: Representative commercial products for SC platform (January 2020) ........................................3

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