Internet of Things Architecture

Action Component Component functionality

―Look Up
Service
Description
Based On
Service
Identifier‖ Use
Case

IoT Service

Client

IoT Service

Resolution

lookupService:

given the

ServiceID

provide the

Service

Description of

the service

ServiceID ServiceID

available

Output:
Functionality
Output

Impacted

Components

Return value Exception

Service
Description of
the Service

• ServiceDescription Service
  Description not
  available

Interface Definition: Subscribe Service Look-up

Input

Illustrative
Action

Calling

Component

Called

Component

Name of the

functionality

Parameters Prerequisite

―Subscribe
to Look-up
of Service
Description
based on
Service
Identifier‖
Use Case

IoT Service

Client

IoT Service

Resolution

subscribeService-

Lookup: given the

ServiceID

asynchronously

notify the IoT

Service Client

about the service

description as a

result of the

subscription and

on any change of

the service

description

ServiceID

Notification-

Callback

ServiceID

available

Notification-

Callback and

notifyService-

Lookup

implemented

on the IoT

Service Client

side

Output:

Functionality
Output

Impacted

Components

Return value Exception

Subscription
identifier

• SubscriptionID Subscription
  failed