This document discusses the Internet of Things (IoT) and the related Web of Things (WoT). It notes that an increasing number of "things" are connecting to the internet, with Cisco predicting 25 billion connected devices by 2015 and 50 billion by 2020. However, connecting small devices poses challenges as they have limitations in terms of computing power, capabilities, and lack of screens. The document proposes a simple WoT architecture to control these small connected things through the web in an automated way without traditional presentation layers, as these devices are meant for control rather than human interaction. It concludes by noting open questions around how to request and respond from such devices over the web given their constraints.

1. IoT and WoT
(Internet of Thing & Web of Things)
Jonghong Jeon
ETRI, PEC
Email: hollobit@etri.re.kr
Blog: http://mobile2.tistory.com
http://twitter.com/hollobit
http://www.etri.re.kr

2. The era of
Source: http://www.theconnectivist.com/2014/05/infographic-the-growth-of-the-internet-of-things/

3. 3
Change – Internet Remix

4. 4
Changes - Connected Things
More things are connecting to the Internet than people — Cisco’s Internet
Business Solutions Group (IBSG) predicts some 25 billion devices will be
connected by 2015, and 50 billion by 2020

5. 5
Changes – Emerging Open Source Hardware

6. 6
M2M & IoT

7. 7
Too many Players
https://www.cbinsights.com/blog/tech-periodic-table/

8. 8
Too Many Connection Technology

9. 9
Hello, Ciao, Grüetzi…
 IoT needs standards
 Too many standards means no standard
 Big companies grouped in consortiums
 Communication protocols must meet
low-bandwidth requirements
 Interoperability at server level is not
always the best solution
Soure: http://www.slideshare.net/paolopat/internet-of-things-my-washing-machine-on-internet

10. 10
different visions on ‘‘Internet of Things”
Source: Luigi Atzori, “The Internet of Things: A survey”, October 2010

11. Consideration 1: Back to Basic

12. 12
Is coming “Age of IoT” ? Really ?

13. 13
Is coming “Age of IoT” ? Really ?
Source: http://designswarm.com/blog/2014/02/the-past-10-years-of-the-internet-of-things/

14. 14
Don’t forget the Value and Usability
Source: https://twitter.com/cnetnews/status/243783603807461376

15. 15
야심찬 신제품이 시장서 실패하는 이유
“기업은 소비자들이 신제품의 새로운 효용에 매료될 것이라고 생각하지만 실
제로 소비자들은 가격이 적절한지, 기존 소비 습관을 바꿀만한 것인지, 사회적
행동의 변화를 가져올만한 것인지 등 심리적 요인에 영향을 받는다. 이 때문에
소비자의 구매를 유도하기 위해서는 다각도로 소비자 심리에 접근해야 한다.”
http://magazine.hankyung.com/apps/news?popup=1&nkey=2013112800939000381&mode=print_view

16. 16
야심찬 신제품이 시장서 실패하는 이유
“기업은 소비자들이 신제품의 새로운 효용에 매료될 것이라고 생각하지만 실
제로 소비자들은 가격이 적절한지, 기존 소비 습관을 바꿀만한 것인지, 사회적
행동의 변화를 가져올만한 것인지 등 심리적 요인에 영향을 받는다. 이 때문에
소비자의 구매를 유도하기 위해서는 다각도로 소비자 심리에 접근해야 한다.”
http://magazine.hankyung.com/apps/news?popup=1&nkey=2013112800939000381&mode=print_view

17. 17
Back to Basic – Service History

18. 18
Back to Basic – Internet Users

19. 19
IoT Scenario
Source: OIC

20. Consideration 2: Next Web Application ?

21. 21
Evolution of World Wide Web

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But , Web Technology for Small Connected Things ?
Half of connected devices will be small IoT devices
(how we can bring those devices into the web ecosystem)
We need to consider
these small devices

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Characteristics of Small Connected Thing
 Connectivity
 Locally, Globally
 Wired, Wireless
 Controllability
 One way, Two way
 Immediately, …
 Interactivity
 Interaction ability – screen, sound, light …
 Limitations
 Low Computing power
 Device capability
 Non-screen

24. 24
Traditional Web Architecture
Web
Resources
URI/IRI
RESTful
Web Connectivity
Presentation purpose
(for human interaction)

25. 25
Simple WoT Architecture
Web
Resources
RESTful
Small
device
Small
device
What kind of request ?
What kind of response ?
Do we need to use HTML/CSS markup ?
which kind of web client do we need ?
Web Connectivity
Control purpose
(for automatize interaction)
Client/Server Client/Server

26. 26
Web Architecture for Non-screen Devices
Absence of Presentation Layer

27. 27
Conclusions

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JongHong Jeon (hollobit@etri.re.kr)
+82-42-860-5333
http://facebook.com/jonathan.jeon
http://twitter.com/hollobit