1. Douglas Jay Evans
ENC3241 - Spring
April 7, 2013
Cloud Computing; Is It For
You?

2. 4/29/2013

3. • Cloud computing is a system
in which software programs
and applications are accessed
and used virtually through an
Internet connection.
• The “cloud” actually refers to
the Internet. The software is
usually hosted on multiple
servers in various locations.
• Multiple users from the same
company can access the
software from anywhere that
they have an Internet
connection.
• The costs of cloud computing
are normally based on a usage
model, with payments being
charged on a time usage basis
or an occurrence basis.
4/29/2013

4.  “Infrastructure-as-a-service – rather than purchasing
servers, software, data center space and network
equipment, the vendor provides these services and
bills the client based on the amount of resources
consumed.
 Platform-as-a-service – the vendor provides and
manages the operating system, database, and
everything else needed to run certain platforms.
 Software-as-a-service – instead of businesses
purchasing a software license, vendors run the
software application for you. The software is
continually updated behind the scenes.”(Holland)
4/29/2013

5. 4/29/2013
 SaaS (software as a service) – “This type of cloud
computing delivers a single application through the
browser to thousands of customers using a
multitenant architecture”.
 Utility computing - This form of cloud computing is
getting new life from companies such as Amazon.com,
Sun, IBM, and others who now offer storage and
virtual servers that IT can access on demand.
 Web services in the cloud – “Closely related to SaaS,
Web service providers offer APIs that enable
developers to exploit functionality over the Internet,
rather than delivering full-blown application”.
 Platform as a service - This form of cloud computing
delivers development environments as a service and
is considered another form of SaaS.

6. 4/29/2013
 MSP (managed service providers) – A managed
service is basically an application exposed to IT
rather than to end-users, such as a virus scanning
service for e-mail or an application monitoring service
and is one of the oldest forms of cloud computing.
 Service commerce platforms - A hybrid of SaaS and
MSP, this cloud computing service offers a service
hub that users interact with and are most commonly
used in electronic trading.
 Internet integration - The integration of cloud-based
services is in its early days.

7. 4/29/2013
Computer.howstuffworks.com/cloud-computing/cloud-computing

8. Advantages Disadvantages
 Potential Cost Savings
(computers can be
customized with lower cost
components since the
applications are not run
locally on the computer)
 Easier access for
mobile employees.
(Wherever there is an
internet connection
employees will have access
to all there companies
applications and files)
 Potential security risk.
(Because most cloud
networks are hosted by
third parties over the
internet there is always
potential of data being
compromised during usage)
 Not fault-tolerant.
(If the cloud is down there
is no direct connection to
software or applications.
This kind of fault can cripple
any major company costing
them time and money)
4/29/2013

9.  Availability - Will your cloud service go down
unexpectedly, leaving you without important
information for hours or more?
 Data mobility and ownership - Once you
decide to stop the cloud service, can you get
all your data back? How can you be certain
that the service provider will destroy your
data once you’ve canceled the service?
 Privacy - How much data are cloud companies
collecting and how might that information be
used?
4/29/2013

10. Today we see cloud
computing used not only by
large companies but also by
our most popular devices.
Apple uses the cloud to make
your music and videos
accessible no matter what
device you use(iPod, iPad,
iPhone). You no longer have
to connect to iTunes to obtain
your purchased media. It is
on the cloud and can be
pulled to your device through
the web.
4/29/2013

11. SkyDrive iCloud
4/29/2013
HP Cloud

12.  Business owners should do their homework
before making the decision to move into “the
cloud”. Just like any technology you should:
 Do the research
 Weigh the pros and cons of cloud computing
 Decide what the best solution is for your
business.
 If you decide to move your business into the
cloud make sure you plan the transition and
figure out how you will make the transition work
for you.
4/29/2013

13. 4/29/2013

14. Remember, moving to the cloud is a big decision
that should not be taken lightly. Make sure it
works for your needs. There are so many
options now so make sure that you do your
comparisons.
Look for a cloud that will give you real results for
your money.
This technology is not for everyone! At the end
of the day it is just software.
4/29/2013

15. Abdul, “Moving to the Cloud, Pros and Cons”, Cloud Tweaks, Plugging
into the Cloud, July 17, 2012, retrieved from
www.cloudtweaks.com/2012/07/pros-and-cons-moving-to-the-cloud/, March 29,
2013.
Backes, Laura, “Cloud Computing”, EpicLaunch, Kick off Your Business,
retrieved from http://epiclaunch.com/cloud-computing-pros-and-cons, March 30,
2013.
Evatt, Robert, “What is Cloud Computing”, June 6, 2012, retrieved from
www.tulsaworld.com/business/article, March 30, 2013.
Holland, Thom, “Pros and Cons of Cloud Computing”, The Beckon,
retrieved from www.thebeckon.com/pros-and-cons-of-cloud-computing, April 1,
2013.
Knorr, Eric, “What Cloud Computing Really Means”, Infoworld, retrieved
from www.infoworld.com, April 5, 2013.
Strickland, Jonathan, “How Cloud Computing Works”, How Stuff Works,
retrieved from computer.howstuffworks.com, March 31, 2013.
Tuttle, Mike, “Cloud Computing; The Pros and Cons, Yay, Cloud”, Web
Pro News, March 5, 2012, retrieved from www.webpronews.com/cloud-
computing-the-pros-and-cons-2012-03, March 29, 2013.
4/29/2013