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Cloud Computing

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Tobias Hald

on 16 July 2014

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Transcript of Cloud Computing

Benefits of Cloud Computing

maximizes the effectiveness of shared resources
reduction of costs
Universal access
Choice of applications
potential to be greener and more economical
Opportunities
Cloud Computing
Threats
Platform as a service PaaS
Middle layer
Mainly aimed at professional users
Development environment is provided
Software as a service
SaaS
Final layer
Also aimed at non professional users
Software or application is provided via cloud
i.e. Prezi, Dropbox etc.
Service models of cloud computing
structured by different layers of abstraction
three general kinds
upper layers may be based on lower ones

source: http:// purevpn.com/blog/wp-content/uploads/2011/12/online-threats2.jpeg
source: http://www.hrs-outsourcing.com/assets/drgalleries/1889/big_shutterstock_108731018.jpg
&
Infrastrucuture as a service
IaaS
Deployment models
PRIVATE CLOUD
PUBLIC CLOUD
COMMUNITY CLOUD
HYBRID CLOUD
Lowest layer
Mainly aimed at professional users
Infrastructure is provided for user
Infrastructure:
servers, computing power, network capacity, communications equipment, storage
Access infrastructure via internet
open for general users of the internet, the public.
public can rent service.
for free or “pay as you go”.
Examples: Amazone AWS,Google and Microsoft.
within one company
managed internally by organization
or through a third party
full control and power over data
Economic/corporate point of view
Entrepreneur/ individual point of view
save money
unlimited capacity
Cloud provider
access from every device
more security
growing technology area
Security/data protection
Prevention
update ciphered data constantly
risk management
keep track existing data
main concerns
7 key obstacles
- compromising data

- different systems on one hardware
- program interfaces

- Thievery of accounts and Cloud-services

- malicious use of data

- criminal use of Cloud Computing

- unknown provider issues
infrastructure shared by organizations with similar requirements
generalization of private cloud
numbers of users is smaller
users often share costs
Users: universities or unions..
mix of other cloud computing systems
depending on the needs of the users
suitable for companies whose process of full outsourcing has been completed.
http://www.conres.com/cloud-computing-deployment-models
http://www.cloud-competence-center.com/understanding/cloud-computing-deployment-models/
http://www.cloud-competence-center.com/understanding/cloud-computing-deployment-models/
http://www.cloud-competence-center.com/understanding/cloud-computing-deployment-models/
structure
benefits
opportunities & threats
different kinds of clouds
resources are not only shared by multiple users, but also dynmically reallocated per demand
effectiveness
reduction of costs
lower hardware costs from more
effective use of physcial resources
Universal access
allows remotely located employees to access applications and work via the internet
choice of applications
allows flexibility for cloud users to
experiment and choose the best
option for their needs
economical advantage

the average amount of energy needed for a computational action carried out in the
cloud is far less
3. SaaS
2. PaaS
1. IaaS

http://www.salesforce.com/de/socialsuccess/cloud-computing/10-vorteile-des-cloud-computing.jsp


http://www.salesforce.com/de/socialsuccess/cloud-computing/10-vorteile-des-cloud-computing.jsp


http://www.salesforce.com/de/socialsuccess/cloud-computing/10-vorteile-des-cloud-computing.jsp


http://www.salesforce.com/de/socialsuccess/cloud-computing/10-vorteile-des-cloud-computing.jsp


http://www.salesforce.com/de/socialsuccess/cloud-computing/10-vorteile-des-cloud-computing.jsp

Source: Baun, C. et al. (2011), Cloud Computing, edition 2., Springer-Verlag Berlin Heidelberg
source: http://www.itwissen.info/definition/lexikon/IaaS-infrastructure-as-a-service-Infrastructure-as-a-Service.html (13/07/14)
Source: http://www.itwissen.info/definition/lexikon/PaaS-platform-as-a-service-Platform-as-a-Service.html (13/07/14)
References:
Baun, C. et al. (2011), Cloud Computing, edition 2., Springer-Verlag Berlin Heidelberg, p. 119-129
References:
Dr. Höllwarth, T. (2012), Cloud Migration, Hüthig Jehle Rehm Gmbh, p.91-100
Source: http://www.itwissen.info/definition/lexikon/software-as-a-service-SaaS.html (13/07/14)
Full transcript