Presented at the 2nd Israeli conference on software architecture, Herzliya, November 30, 2015,

1. Software Architecture Conference
Speaker: Opher Etzion
THE INTERNET OF
THINGS
AN EVENT-DRIVEN
PERSPECTIVE

2. None of the
authorized drivers
location is near the
car’s location
theft is concluded
Use a built-in car
stopper to slow the
intruder and dispatch
the security companyA person enters a
car and the car
starts moving;
the person does not
look like one of the
authorized drivers
Such applications
become possible
since everything is
connected
2

3. More IoT Applications:
A driver gets notification on the car screen: the
person crossing the street is an Alzheimer patient
out of his regular route, he lives in 5 King Street.
A national park gets information on all
cars heading to the park from the car
computer; can open more parking lots
and notify cars that the park will be
closed.

4. And some emerging areas…
Your robot sees that you are about
to spill coffee on your laptop and
grasps the cup before it happens
Driverless car Driverless cars become the state of
the practice, no accidents occur
anymore, and the route is being
adapted to the traffic conditions
An autonomic computing using
biological sensors and actuators: a
step towards singularity and
overcoming biological limitations.

5. 5
The term “Internet of Things” was coined by Kevin
Ashton in 1999.
His observation was that all the data on the
Internet has been created by a human.
His vision was: “we need to empower computers with
their own means of gathering information, so they
can see, hear, and smell the world by themselves”.

6. 6
The value of sensors
Kevin Ashton: “track and count everything, and
greatly reduce waste, loss, and cost. We could
know when things needs replacing, repairing or
recalling, and whether they were fresh or past
their best”
The value is in the ability to know and react in a
timely manner to situations that are detected by
sensors

7. 7
“How does Event Processing get into the
picture?”
While the weakest link is now considered the data
integration issue – looking beyond that we can find
event processing
Combining data from multi-sensors to get
observations, alerts, and actions in real-time gets
us to the issue of detecting patterns in event
streams
However much of the IoT world has not realized it
yet…

8. What is “event processing” anyway?
or
Event processing is a form of computing that
performs operations on events

9. What is an event
There are various definitions of events
Event is an occurrence within a particular system or
domain; the word event has double meaning: the real-world
Occurrence as well as its computerized representation

10. In daily life we often react to events..

11. What we actually want to react to are – situations
TOLL
VILOATOR FRUSTRATED
CUSTOMER
Sometimes the situation is
determined by detecting that
some pattern occurred in the
Flowing events.
Toll violation
Frustrated customer
Sometimes the events can
approximate or indicate with
some certainty that the
situation has occurred

12. Event
Patterns
Pattern detection is one of the notable functions of
event processing

13. Event Driven Architecture
Event driven architecture: asynchronous, decoupled; each
component is autonomic.

14. 14
Principle of decoupling
An event producer does not depend on any particular processing or course of
action being taken by any event consumer.
An event consumer does not depend on any processing performed by the
producer other than the production of the event itself.

15. 15
Event Processing Agent
Context
Event
Channel
Event
Consumer
Event
Type
Event
Producer
Global
State
The seven
Building blocks

16. 16
FFD EPN – The assignment system

18. 18
The hype is there…
The potential to be the basis of a revolution is there…
Some solutions are there….
Bridging the gaps are on the way.... The community
needs to focus on the crucial issues…