Internet of Things Architecture

C.3.2.3 Interface Definitions

In this subsection we present the operations of the IoT Service Resolution
functional component, i.e., resolve service, look up service, discover service,
insert service, update service and delete service.

Interface Definition: Resolve Service

Input:

Illustrative
Action

Calling

Component

Called

Component

Name of the

functionality

Parameters Prerequisite

―Resolve
Service
Identifier to
URL‖ Use
Case

IoT Service

Client

IoT Service

Resolution

resolveService:

given the

ServiceID

provide the

URL required

for accessing

the service

ServiceID ServiceID

available

Output:

Functionality
Output

Impacted

Components

Return value Exception

URL of the
Service

• Service URL Service URL
  not available

Interface Definition: Subscribe Service Resolution

Input:

Illustrative
Action

Calling

Component

Called

Component

Name of the

functionality

Parameters Prerequisite

―Subscribe
to Resolution
of Service
Identifier to
URL‖ Use
Case

IoT Service

Client

IoT Service

Resolution

subscribeService-

Resolution: given the

ServiceID

asynchronously

notify the IoT Service

Client about the

service URL required

for accessing the

service as a result of

the subscription and

on any change

ServiceID

Notification-

Callback

ServiceID

available

Notification-

Callback and

notifyService

Resolution

implemented

on the IoT

Service

Client side