Internet of Things Architecture

Perform authentication/authorization

of new device

Add new device to Member FC

Management FG

Add IoT Services for

device resources

IoT Service FG

Establish secure communication with device

Update other Management FCs Add entries to IoT Service Resolution FC

Figure 97 : Adding a new Device to the system - activity diagram

5.5.1.2 Changing the device configuration

In this section, we discuss how a device or a group of devices can be
configured using different FCs of the IoT Reference Architecture. Such process
involves the following steps depicted in Figure 98 :

 As a pre-requisite, the communication link from the Device FG to the

various IoT Resources should be established, relying on Communication

and Security functions;

 The request for a configuration change is issued by a human system

manager through a management console, or by a FC. It results in a call

to the Management: Member FC (step 1) through the

retrieveMember() interface followed by a call to Management:

Configuration FC (step 2) through the setConfiguration() interface.

Naturally, such calls are subject to access control through the Security:

Authentication and Security: Authorization FCs – not represented);

 Depending on design choices made (e.g. whether the configuration of the

associated resource is part of the related IoT Service or not), the actual

configuration update on the device can be realized by either

communicating directly with the device (e.g. sending a configuration

message, steps 3‘, 4‘) or through the IoT Service associated with the

resource (steps 3-5).