The document discusses cloud computing and how it relates to service-oriented architecture (SOA). It defines cloud computing as the extension of SOA to deliver cloud resources like storage, data, and platforms as a service. The document provides advice on when cloud computing may be suitable versus not suitable for organizations. It also outlines a 16-step process for organizations to start implementing cloud computing solutions.

1. David S. Linthicum
david@bluemountainlabs.com
www.bluemountainlabs.com
Winning with Cloud Computing
Step-by-Step
© 2006 The Linthicum Group. All Rights Reserved.
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2. The Basic Idea
SOA Cloud
Resources
Finance/
Operations
Sales Order
Update
New
Accounts
Commission
Calculation
Data
Cleaning
Sales
2
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3. Cloud Computing makes SOA even
more Cost Effective
Cloud
Cha-Ching!
SOA
Computing
3
© 2006 The Linthicum. Group. All Rights Reserved.
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4. SOA and Cloud Computing
• One can consider cloud
computing the extension of
SOA out to cloud-delivered
resources, such as storage-
as-a-service, data-as-a-
service, platform-as-a-service
-- you get the idea.
• The trick is to determine which
services, information, and
processes are good
candidates to reside in the
clouds, as well as which cloud
services should be abstracted
within the existing or emerging
SOA.
4
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5. Organizing the Clouds
Testing-as-a-Service
Management/Governance-as-a-Service
Integration-as-a-Service
Application-as-a-Service
Security-as-a-Service
Process-as-a-Service
Platform-as-a-Service
Information-as-a-Service
Database-as-a-Service
Storage-as-a-Service
Infrastructure-as-a-Service
© 2006 The Linthicum. Group. All Rights Reserved.
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6. IT is Skeptical
• Enterprise IT is
understandably skittish
about cloud computing.
• However, many of the
cloud computing
resources out there will
actually provide better
service than on-premise.
• Security and performance
are still issues.
6
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7. Making the Business Case
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8. On-Premise
$1,000,000
$500,000
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9. Cloud Delivered
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10. However, Not So Fast
• Not all computing
resources should
exist in the clouds.
• Cloud computing is
not always cost
effective.
• Do your homework
before making the
move.
10
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11. When Cloud Computing may be a Fit
• When the processes, applications, and data are
largely independent.
• When the points of integration are well defined.
• When a lower level of security will work just fine.
• When the core internal enterprise architecture is
healthy.
• When the Web is the desired platform.
• When cost is an issue.
• When the applications are new.
11
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12. When Cloud Computing may not a
Fit
• When the processes, applications, and data are
largely coupled.
• When the points of integration are not well
defined.
• When a high level of security is required.
• When the core internal enterprise architecture
needs work.
• When the application requires a native interface.
• When cost is an issue.
• When the application is legacy.
12
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13. Start with the Architecture
Understand:
• Business drivers
• Information under
management
• Existing services
under management
• Core business
processes
•13
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14. Getting Ready
• So, how do you prepare yourself? I have a few
suggestions:
– First, accept the notion that it's okay to leverage services
that are hosted on the Internet as part of your SOA. Normal
security management needs to apply, of course.
– Second, create a strategy for the consumption and
management of cloud services, including how you'll deal with
semantic management, security, transactions, etc.
– Finally, create a proof of concept now. This does a few things
including getting you through the initial learning process and
providing proof points as to the feasibility of leveraging cloud
computing resources.
14
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15. Stepping to the Clouds
1. Access the business. 10. Identify candidate processes.
2. Access the culture. 11. Create a governance strategy.
12. Create a security strategy.
3. Access the value.
13. Bind candidate services to data
4. Understand your data.
and processes.
5. Understand your services.
14. Relocate services, processes, and
6. Understand your processes. information.
7. Understand the cloud 15. Implement security.
resources. 16. Implement governance.
8. Identify candidate data. 17. Implement operations.
9. Identify candidate services.
15
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16. Create the Information
Model
Ontologie
Legacy
s
Metadata Understand Ontologies
Data
Dictionary
External &
Understand the Data
Metadata Metadata
(B2B)
Data
Catalog
Catalog the Data
Information
Model
Build Information Model
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17. Create a Service Model
Candidate
Data
Services
Catalog Understand Services
Services
And
Information Information
Information to Services
Model
Service
Model
Build Service Model
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18. Data Data
On Premise Application
Services
Cloud-Based Application
Data Data
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19. On Premise
Cloud Provider
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20. On Premise
Cloud Provider
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21. Other Thoughts
• External cloud services should
function like any other
enterprise application or
infrastructure resource.
• You should evaluate cloud
providers using similar
validation patterns as you do
with new and existing data
center resources.
• Cloud resources should appear
native.
• Consider Private Clouds.
• Watch the hype, the resources
are new, but the patterns of
architecture are familiar.
21
© 2006 The Linthicum. Group. All Rights Reserved.
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22. Thanks!
david@bluemountainlabs.com
• Blogs:
– InfoWorld “Real World SOA”
– Intelligent Enterprise
– eBizq.net
• Weekly Podcasts
– InfoWorld SOA Report
– Cloud Computing Podcast
• Columns
– SOA Journal
– Cloud Computing Journal
– eBizq.net
– Align Journal
– Government Computer News
• Follow me on Twitter (DavidLinthicum)
© 2006 The Linthicum. Group. All Rights Reserved.
Reproduction without prior written permission is strictly prohibited.