Internet of Things Architecture

service description changes

over or service becomes

unavailable. A unique

SubscriptionID is returned to the

subscribing User that can be

used to match notifications to

the subscription and to

unsubscribe.

Discover Service matching
specification

Retrieves a list of services

descriptions matching a given

specification.

C3.2.2

(Un)Subscribe to Service
Discovery for services matching
given description

(Un)Subscribes for continuous

notifications about services that

fit the provided Service

Specification, to be sent to the

provided callback function. A

unique SubscriptionID is

returned to the subscribing User

that can be used to match

notifications to the subscription

and to unsubscribe.

C3.2.2

Update Service with description
based on ID

Updates service entry identified

by service ID with new service

description

C3.2.2

Insert Service with description
Adds new service entry to the
service database with the given
service description

C3.2.2

Delete Service with ID
Removes service given a
service ID.

C3.2.2

IoT Service

Description Software component exposing a Resource through a well-
defined interface to make it accessible to other parts of the IoT
system, often via the Internet. Typically, resource services
expose the functionality of a device by accessing its hosted
resources. These kinds of services refer to a single resource.
In addition to exposing the resource‘ functionality, they deal
with non-functional aspects, such as dependability security
(e.g. access control), resilience (e.g. availability) and
performance (e.g. scalability, timeliness).