The Cloud's Role in Enterprise Architecture - Computer ...

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Nov 3, 2013 (4 years and 10 days ago)

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The Cloud’s Role in Enterprise
Architecture


William
Hornick

SENG 691D

03/04/2013

Overview


Introduction


To the Cloud!?!


Making the Leap


Reasons to Stay Grounded


Conclusion


Bibliography

Introduction


Where does the cloud fit in?


When/How does a company transition to
the cloud?


Does this make put an enterprise at risk?


Why would a company not adopt a cloud
framework?

To the Cloud!?!


Actual definition of cloud computing
subject to debate


National Institute of Standards and
Technology Definition:


On
-
demand self
-
service


Broad network access


Resource Pooling


Rapid elasticity


Measured Service

To the Cloud!?!


Reasons for adopting the cloud into an EA
Framework:


John
Zachman

explanation


May be used modularly


Avoid expanding IT


Versatility and Agility


Greater reliability and lower fault
-
tolerance


Lower Costs


Go
Green


Results may vary….

Making the Leap


The road can be a long one


Begin by determining “cloud
-
readiness”


Timing is Key


Avoid start
-
up period and periods of restructuring


Ability to grow


Can scale business processes


Current processes must be able to evolve


New processes must be adopted


Investigate IT management and support
processes/Understand internally


Making the Leap


No single road map


Contract individuals to plan a route


May be easier, but interior knowledge of finished
framework won’t be as great


Working internally


Look to history as a guide, “best” practices


Draft business process models for current and
goal structures


Can even use an EA framework solution based on
detail needs


Use these models to determine the next steps


Making the Leap: Minimizing Risks


Expect risks along the way


Understand your company’s needs


Software
-
as
-
a
-
Service (
SaaS
)


Platform
-
as
-
a
-
Service (
PaaS
)


Infrastructure
-
as
-
a
-
Service (
IaaS
)


Cloud Computing also known as Utility
Computing


Ensure understanding of how cloud services
are billed by Cloud Service Provider (CSP)

Making the Leap: Minimizing Risks


Contract provisions to scrutinize:


a. Modifications to the contract terms


b. Description of services


c. Limitation on the use or reuse of the data


d. Confidentiality and security requirements


e. Intellectual property rights


f. Representations and warranties


g. Indemnification


h. Limitation of liability and damage


i
. Contract terms and renewal


j. Effect of termination


Understand all clauses

Making the Leap: Minimizing Risks


Selection Criteria for a CSP


Must demonstrate effective security


Understand who owns the application versus the
applications


Know where the data will be housed for legal
reasons


A complete service level agreement


Enterprise must know who is responsible for
security


Once again, understand your needs and what they
provide

Making the Leap: Minimizing Risks

Sources of Enterprise Risk

Reasons to Stay Grounded


Integration Standards


Some believe the cloud needs new
algorithms


Fear of contracting poorly


Sustainability not threatened


Poor timing


Keep all IT in house


Waiting…

Conclusion


The cloud is here to stay


Both EA and the cloud can coexist


Several reasons to adopt the cloud


Planning is key to making it a success


Understanding the risks is a must


Not everyone is convinced/ready to
transition

Bibliography


Aureli
, Laura, Arianna
Pierfranceschi

and
Holger

Wache
. "Enterprise
Architectures for Cloud Computing ." Cloud Computing (CLOUD), 2012 IEEE
5th International Conference on (2012): 979
-
980.


Ebneter
, Daniel, et al. "Enterprise Architecture Frameworks for Enabling
Cloud Computing ." Cloud Computing (CLOUD), 2010 IEEE 3rd International
Conference on (2010): 542
-
543.


Guo
,
Yike
, M.
Ghanem

and
Rui

Han. "Does the Cloud Need New
Algorithms? An Introduction to Elastic Algorithms ." Cloud Computing
Technology and Science (
CloudCom
), 2012 IEEE 4th International
Conference on (2012): 66
-
73.


Khajeh
-
Hosseini
, Ali, David Greenwood and Ian
Sommerville
. "Cloud
Migration: A Case Study of Migrating an Enterprise IT System to
IaaS
."
Cloud Computing (CLOUD), 2010 IEEE 3rd International Conference on
(2010): 450
-
457.


McKendrick
, Joe. "5 ways to think like a cloud architect." 24 September
2012. ZDNet. http://www.zdnet.com/5
-
ways
-
to
-
think
-
like
-
a
-
cloud
-
architect
-
7000004730/. February 2013.



Bibliography (Cont.)


Onwudebelu
,
Ugochukwu

and Benedict
Chukuka
. "Will Adoption of
Cloud Computing Put the Enterprise at Risk?" Adaptive Science &
Technology (ICAST), 2012 IEEE 4th International Conference on (2012):
82
-
85.


Rosenberger, Scott. "Does Cloud Computing Make Enterprise
Architecture Irrelevant?" 2013. Deloitte Debates.
http://www.deloitte.com/view/en_US/us/Insights/Browse
-
by
-
Content
-
Type/deloitte
-
debates/2e14ac5cd7cea210VgnVCM1000001a56f00aRCRD.htm.
February 2013.


Urquhart, James. "Cloud & the evolution of the enterprise architect."
29 August 2012.
Gigaom
. http://gigaom.com/2012/04/29/cloud
-
and
-
the
-
evolution
-
of
-
the
-
enterprise
-
architect/. February 2013.


Zachman
, John A. "Cloud Computing and Enterprise Architecture."
2011.
Zachman

International Enterprise Architecture.
http://www.zachman.com/ea
-
articles
-
reference/55
-
cloud
-
computing
-
and
-
enterprise
-
architecture
-
by
-
john
-
a
-
zachman. February 2013.