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Devising a Practical Approach
To the Internet of Things
Gordon Haff
@ghaff
10 February 2015
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IoT's
expected
impact
Source: The Economist Intelligence Unit
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What does the market look like?
How is it developing?
How do you architect for IoT?
HOW SHOULD WE THINK ABOUT IOT?
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IT MAY BE WORTH REMEMBERING
There is no reason for any
individual to have a
computer in his home.
Ken Olsen, DEC, 1977
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THE RISE OF THE
PERVASIVE SENSOR
Credit: Eric Fischer
Complete set: https://www.flickr.com/photos/walkingsf/sets/72157624209158632/
San
Francisco
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SOME FACETS TO CONSIDER
• Consumer vs. Industrial
• No IP address vs. IP address
• How heavy is the client?
• How is the client connected?
• What does the client connect to?
• How and where is data processed?
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Internet of Things Ecosystem and Trends
Source: IDC, Internet of Things Ecosystem and Trends, #IDC_P24793
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GARTNER
HYPE CYCLE
FOR
INTERNET OF
THINGS
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• Connected things not new, but…
• Value from greater connectivity options and
how data used to improve process
capabilities and automate decisions
• Integration with existing IT nascent
• High potential value—but also requires high
process and culture change
GARTNER: INTERNET OF THINGS FOR
MANUFACTURING OPERATIONS
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THE INDUSTRIAL IOT
“We need the IT side to understand the
business value and priorities of control
integration, and to take more of a
leadership role. The controls side needs to
understand the need to partner and work
more closely with IT to take advantage of
these technologies.”
--Dan McGrath, Panduit
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The growth of data
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DATA = $$ ?
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IS IT USEFUL?
Useful 34%
Tagged 7%
Analyzed 1%Source: KPCB
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Flickr/cc by Amy Barr
https://www.flickr.com/photos/anaxila/367953499
vs.
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• The Thread Group
• IoT-GSI Open Interconnect Consortium
• The AllSeen Alliance
• HyperCat
• HomeKit
• Industrial Internet Consortium *
• OASIS IoT/M2M
• Weightless
MANY STANDARDS ORGS WITH DIFFERENT GOALS
Much overlapping membership
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Apple
Cisco
Symantec
Accenture
ARM
Dell
IBM
Intel
Microsoft
PTC
Samsung
Source: Rachel Chalmers,
Ignition Partners
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SOME IOT MESSAGING PROTOCOLS: NEW HTTP?
Message Queue Telemetry Transport (MQTT)• Pub/sub over TCP (one-to-one, one-to-many and many-to-one)
• Lightweight M2M
• Originally IBM—open standard
Constrained Application Protocol (CoAP)• Document transfer protocol (like HTTP) but designed for constrained devices
• Built on UDP
• Primarily one-to-one (client/server)
XMPP (Jabber)• Mostly data is going between distant, mostly unrelated points (like IM)
• Tends to be for consumer apps
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MORE IOT MESSAGING PROTOCOLS
Data Distribution Service (DDS)• Direct device-to-device bus communication
• Data-centric middleware standard with roots in high-
performance defense, industrial, and embedded applications.
• Can efficiently deliver millions of messages per second to many
simultaneous receivers
Advanced Message Queuing Protocol (AMQP)• Strictly reliable point-to-point messages between servers using
TCP
• The standard for high-performance messaging in finance
• In IoT context, AMQP most appropriate for the control tier or
server-based analysis functions
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IOT: STRINGENT TECH CHALLENGES FOR IT
Scalability• IDC expects the global installed base of IoT endpoints to reach 212
billion connected devices by 2020 (Source: Worldwide Internet of Things
(IoT) 2013–2020 Forecast: Billions of Things, Trillions of Dollars, IDC,
October 2013)
• An individual intelligent system might gather and analyze billions of data
objects from millions of distinct endpoints
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IOT: STRINGENT TECH CHALLENGES FOR IT
Reliability• Many intelligent systems will be employed for mission-critical applications
where system downtime can result in diminished productivity, dissatisfied
customers, or lost revenue
• Some intelligent systems will be used in safety-critical applications where
system downtime can lead to loss of life or property or cause significant
environmental or health hazards
• Examples: emergency services, process control, real-time systems
control, health applications
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IOT: STRINGENT TECH CHALLENGES FOR IT
Security• Inherent exposure to public cloud and network services
• Security systems and practices must be extended to protect
against data loss, service theft, and increasingly sophisticated
denial-of-service attacks in a scalable manner
• Support cohesive authentication, authorization, and auditing
capabilities to establish trust, govern access to resources, and
ensure compliance
• Strong encryption often needed
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THREE TIER ARCHITECTURE FOR IOT: DEVICE
• Wide variety of intelligent endpoints
(including relatively traditional client
computers/OSs)
• Standards-based wired and wireless
networking protocols for connectivity
• Standards-based data transport and
messaging mechanisms are used to forward
raw data and exchange control information
• Up to 100s of thousands or even millions
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THREE TIER ARCHITECTURE FOR IOT: CONTROLLER
• Intermediary that facilitates communications,
offloads processing functions, and drives
action
• Analyzes tactical data and executes business
rules and issues control information
downstream
• Collects, summarizes, and stores device data
and forwards it upstream
• Consider “data gravity” and network
bandwidth/latency effects
• Thousands of instances
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THREE TIER IOT ARCHITECTURE IOT: DATACENTER/CLOUD
• Large-scale data computation and repository
for data storage and strategic analysis
• Virtual environment for instantiating
applications, storing data, and executing
complex event processing, distributed
computing, and business analytics functions
• Collects and examines aggregated data from
the control tier and disseminates business
rules downstream
• Hundreds of instances
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THREE-TIER ARCHITECTURE FOR IOT
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SUMMING UP
• IOT isn’t a single thing and the details vary a
lot
• Different IOT examples are at different
maturity points
• Some may never mature—technology, use
case, cost
• Data architectures and approaches matter
• Intelligent systems architectures matter
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ABOUT ME
• Red Hat Cloud Product Strategy
• Twitter: @ghaff
• Google+: Gordon Haff
• Email: [email protected]
• Blog: http://bitmason.blogspot.com
• Formerly: Illuminata (industry analyst), Data
General (minicomputers/Unix/NUMA/etc.)
