This slide set provides an introduction to cloud Computing. It briefly talks about fundamental cloud services, deployment models and the factors that made it an emerging paradigm.

1. Introduction to Cloud Computing
ProfEdge Solutions Pvt. Ltd.

2. Agenda
• Why learn about Cloud Computing?
• What is Cloud Computing?
• Evolution to Cloud Computing
• Cloud Computing Architecture
• Fundamental Cloud Services
o SaaS , PaaS, IaaS
• Deployment models
• Pros and Cons
• What does it mean to developer?
• Conclusion
• About ProfEdge Solutions

3. Why Learn about Cloud Computing?
• Seen an acceleration in
adoption of cloud computing
and cloud services
• It is mentioned as one of the
top 5 technology trends to
watch in next 4-5 years by a
report from Gartner
• Everybody is talking about it , It’s a buzzword..!

4. What is Cloud Computing?
• Services and Solutions that are
delivered and consumed in real
time over internet are Cloud
Services
– When you store your photos
online, use webmail or a social
networking site, you are using a
“cloud computing” service
• Cloud computing is a delivery
model of computing services
over the Internet
– It enables real time
development, deployment and
delivery of broad range of
products , services and solutions

5. Common Cloud Characteristics?
• On Demand Self Service
• Ubiquitous network Access: Anywhere, Any
time ,Any Device
• Location independent Resource Pooling
• Rapid Elasticity
• Pay as you go

6. Supporting Factors for Cloud Computing
• Combined affect of following factors have
made Cloud Computing a compelling Paradigm
– Advancement in processors
– Virtualization technology
– Distributed Storage
– Automated Management
– Broadband internet Access
– Fast and Inexpensive Servers

7. Grid to Cloud Evolution?

8. Enabling Technologies for Cloud Computing
• Essential building blocks of several Cloud based
Services
• Virtualization: is simulating a hardware
platform, operating system (OS), storage
device, or network resources
• Virtual Machines:
– VMWare and XenSource
• Virtual FileSystem:
– Google File System and VMFS

9. Virtualization Overview

10. Typical Virtualization Approaches

11. Cloud Computing Architecture
& Services

12. Cloud Computing Architecture

13. Fundamental Cloud Computing Services!

14. Cloud Service End User view

15. Software as a Service
• Most Known and first Service , major service given
as part of Cloud Computing service
• In this case the application itself is provided by the
service provider, typically via web browser
• Gartner estimates that SaaS revenue will be more
than double its 2010 numbers by 2015 and reach a
projected $21.3bn
• Examples
– User mail: Gmail, Hotmail etc,
– User Pics: Picasa , Flickr
– Enterprise: Webex, OfficeLive

16. Platform as a Service
• PaaS – Platform as a Service
• Hosted application environment for developing
and deploying cloud based applications
• Examples
– Google’s App Engine
– Amazon EC2
– Microsoft Azure

17. Infrastructure as a Service
• IaaS – Service provider offers capacity for rent
basically hosted Data centers and Servers
• An evolution of web site and server hosting
services which provided servers and Virtual
Private servers
• Examples
– AT&T – Hosting and Storage
– Rackspace
– Amazon EC2

18. Cloud Computing User Perspective

19. Cloud Computing Deployment
Models

20. Cloud Computing Service Model

21. Deployment Models

22. Enterprise Evolution to Cloud!

23. Pros and Cons of Cloud Computing!

24. What it means for Software
developer!

25. What does it mean to software developer?
• Cloud Computing is an extension of distributed
models of Software development and delivery
– The software is composed of interoperable third party
components
– The execution happens in distributed manner on multiple
computers
– The ownership is distributed between multiple
organizations
– Generally source code is not available for third party
components

26. Challenges to software practices
• Challenges it imposes to Software Practices
– Third party Service/component selection
– System Inspection and Debugging
– Coping with the evolution of third party
services
– Separation of ownership

27. Cloud Computing Growth Forecast

28. Conclusion
• Cloud Computing is evolved by consolidating
several Technologies like SaaS, Grid and
virtualization
• Major 3 services: Saas, PaaS and IaaS
• 3 deployment models: Private, Public and Hybrid
• From software development perspective it is an
extension of distributed computing

29. References
• http://www.idi.ntnu.no/grupper/su/publ/phd/osterlie-triallecture09.pdf
• http://www.akro.com.au/akroimages/documents/gartner_report_december_11_tech_trend
s_dcappuccio.pdf
• http://www.nist.gov/itl/cloud/
• http://www.oracle.com/us/dm/powering-generation-278787.pdf
• http://www.vmware.com/pdf/virtualization.pdf
• http://www.slideshare.net/liuliming/introduction-to-cloud-computing-presentation
• http://www.slideshare.net/craigsdickson/cloud-computing-introduction-1593276
• http://en.wikipedia.org/wiki/Software_as_a_service

30. ProfEdge Solutions
ProfEdge Solutions Pvt. Ltd.
• A venture by seasoned Industry Professionals
Who we are?
• Talent development company acting as finishing
school for IT graduatesWhat we do?
• An array of learning and training solutions to
students, institutes and corporateWhat we offer?
Our Mission:
"To empower fresh engineering graduates with applied technical knowledge
and build a talent supply chain of Industry ready IT software professionals."
For any queries, please contact deepesh.aggarwal@profedge.in
For more info please visit: www.profedge.in

31. Thanks for your time