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Introduction to Cloud Computing
Roel Honning
+31 6 1090 3170
Roel.honning@ntcs.nl
@roelhonning

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A revolution doesn’t happen when
society adopts new tools, it happens
when society adopts new behaviours.
Clay Shirky
Associate Teacher for New Media at NYU
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Introduction Cloud Computing
Cloud Computing explained in 3 mintues:
http://www.salesforce.com/cloudcomputing/
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Current situation: company’s IT
Devices Software Hardware, Operating Systems,
Datacenters
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What is Cloud Computing exactly?
Cloud
Cloud computing:
Using others software, on others hardware, in others datacenter
for own/business purposes
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Key characteristics Cloud Computing:
1. Pay-per-use
2. Network Delivery
3. On demand self-service
4. Scalable and elastic
5. Shared resources
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Developments driving Cloud Computing
• Increasing need of “Always On: anywhere, any time, any device”
• Availability & performance broadband
• Well developed virtualisation techniques
• IP-technology as a standard
• Resources (datacenters)
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Provided by….
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We already make use of cloud….
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Delivered in 3 flavours
1. Infrastructure as a Service (IaaS)
• Network architects / specialists IT department
2. Platform as a Service (PaaS)
• Application Developers
3. Software as a Service (SaaS)
• End users
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Compare it to organising your holdiay!
IaaS:
Build your own
holiday!
PaaS:
Package deal: flight +
hotel
SaaS:
All-inclusive: No worries, just relax!
Including flight, hotel, transport, foods,
drinks and entertainment.
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Whereas SaaS is most common
• No application software required at the client
• Already completely adopted by consumers
• No investments in user-licences any more
• Software updates are centrally done
• Forecast Gartner:
• $ 21.000.000.000 worldwide in 2014 ($21 bln)
• 30% of all new business applications is cloud based (2015)
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Cloud Business E-mail
UMTS/HSDPA Mailservers
Cloud provider
ADSL Internet cloud
@office
@home
ADSL
Or
UMTS/HSDPA
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Cloud Business E-mail (2)
• Professional e-mail services: name@company.com
• Without own hardware, software and licences
• Allways up-to-date
• Synchronised with all your devices (e-mail, agenda, contacts etc)
• Possible to shared E-mail & Agenda with colleagues
• Cost benefits:
• No investment in hardware, software and licenses
• No maintenance costs of mailserver
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Cloud bookkeeping
Simple terminal
NTCS office
Internet Cloud
Accountant office
Server with
bookkeeping software
and backup
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Cloud bookkeeping (2)
• Client is contractor of the bookkeeping application
• Client gives accounting firm access to administration
• Client can work on administration anywhere/anydevice
• Additional applications available for automation / integration:
• Salary administration
• Automatic invoicing
• Integration with CRM database
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Cloud Back-up/storage
ADSL
Internet
cloud
FttH
Servers
Mass storage
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Cloud Back-up & storage
• All content on servers “in the cloud”
• Highly security & backuped by Cloud Provider
• Centralized storage is cheaper and more reliable
• No need for external Hard Disks at home
• Excellent bandwidth to the cloud is required
• Ease of use:
• Automtaic backup schedule
• Reports with statistics
• Simple Restore
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Most important (dis) advantage SaaS
Advantages: Disadvantages:
• No investments IT-serverpark • Security & Privacy
• No maintenance needed by IT • Reliability provider
• Only pay for use • Always connection needed
• Anywhere, anytime, any device • No standards
• No control on location data
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Cloud Computing & Telecom Operators
 Many years of experience with a pay-per-use model
 Delivering services and support
 Large investment earned back by small transactions
 Maintenance of shared resources
 Only supplier to deliver end-to-end services
 Perfect (commercial) distribution network
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KPN: Software as a Service

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Roel Honning
/ +31 6-10903170 / roel.honning@ntcs.nl
/ @roelhonning

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WWW.NTCS.NL

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Thank you!
If you have any questions?
Roel Honning
+31 6 1090 3170
Roel.honning@ntcs.nl
www.ntcs.nl