Internet of Things – Architecture © 15
Table of figures
Figure 1: IoT Architectural Reference Model building blocks. .................................. 27
Figure 2: The IoT-A Tree ...................................................................................... - 40 -
Figure 3: The recurring example (―Red Thread‖) .................................................. - 49 -
Figure 4: Interaction of all sub-models in the IoT Reference Model. The sub-models
are explained in the text body. ............................................................................. - 52 -
Figure 5: Instantiated IoT Domain Model for the ―Red Thread‖ example (see Section
2.3). ...................................................................................................................... - 55 -
Figure 6: UML Generalization. ............................................................................. - 57 -
Figure 7: UML Aggregation and Composition. ..................................................... - 58 -
Figure 8: UML Association. .................................................................................. - 58 -
Figure 9: Basic abstraction of an IoT interaction. ................................................. - 59 -
Figure 10: UML representation of the IoT Domain Model. .................................... - 63 -
Figure 11: IoT Information Model. ........................................................................ - 68 -
Figure 12: Illustrating example for IoT Information Model. ................................... - 70 -
Figure 13: Relation between the core concepts of the IoT DM and IM ................. - 71 -
Figure 14: IoT Functional Model. .......................................................................... - 74 -
Figure 15: IoT Service and VE abstraction levels. ................................................ - 78 -
Figure 16: IoT Communication Model usages ...................................................... - 83 -
Figure 17: DM entities involved in a User-Service / Service-Service interaction (zoom
of the whole IoT DM in Figure 10). ....................................................................... - 84 -
Figure 18: IoT DM entities involved in a Service / Resource / Device interaction (This
is a zoom of the complete IoT DM in Figure 10). .................................................. - 86 -
Figure 19: 4 layers Internet stack (left) and DoD4 stack (right). ........................... - 87 -
Figure 20: The interoperability aspects of the IoT CM .......................................... - 88 -
Figure 21: Gateway configuration for multiple protocol stacks, aligned according to
the IoT aspect model (see Figure 20)................................................................... - 91 -
Figure 22: Virtual configuration for multiple protocol stacks. ................................ - 92 -