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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

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

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Change – Internet Remix

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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

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Changes – Emerging Open Source Hardware

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M2M & IoT

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

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Too Many Connection Technology

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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

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

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Consideration 1: Back to Basic

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Is coming “Age of IoT” ? Really ?

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

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

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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

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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

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Back to Basic – Service History

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Back to Basic – Internet Users

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IoT Scenario
Source: OIC

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Consideration 2: Next Web Application ?

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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

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

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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

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Web Architecture for Non-screen Devices
Absence of Presentation Layer

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Conclusions

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