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7 Functional architecture of the WoT service

Figure 2 shows an overview of the functional architecture of a WoT service.

Figure 2 – Functional architecture of WoT service

NOTE – Virtual things exist in the information world and are capable of being stored, processed and
accessed. Examples of virtual things include multimedia content and application software [ITU-T Y.4000].
In the case of a WoT service architecture, virtual things exist as the web resources on the web environments.

7.1 WoT service functions

The WoT service functions provide WoT services to WoT clients. They manage overall behaviours
related to the WoT service. If a WoT client requests a WoT service, the WoT service functions
analyse the request then discover and provide the services for a WoT client. The WoT service
functions have three sub-functions as follows:
– WoT service support functions (WoT-S SF): The WoT-S SF manages overall behaviours
of the WoT service. The WoT-S SF are responsible for providing service profile
management, service discovery, service monitoring, QoS management, access control and
policy management of WoT service. And it is also responsible for containing and updating
the WoT service information.

Rec. ITU-T Y.4414/H.623 (11/2015) 795