About the Book

 “In this book, David Linthicum does that rarest of things: he manages to combine showing why SOA and Cloud Computing complement one another with a lucid game plan of how a business can take advantage of the synergies between them in concrete ways that will contribute to the bottom line.”
—Jeremy Geelan
Conference Chair, Cloud Computing Conference and Expo series
Sr. VP, SYS-CON Media and Events

Massive, disruptive change is coming to IT as Software as a Service (SaaS), SOA, mashups, Web 2.0, and cloud computing truly come of age. Now, one of the world’s leading IT innovators explains what it all means—coherently, thoroughly, and authoritatively.

Writing for IT executives, architects, and developers alike, world-renowned expert David S. Linthicum explains why the days of managing IT organizations as private fortresses will rapidly disappear as IT inevitably becomes a global community. He demonstrates how to run IT when critical elements of customer, product, and business data and processes extend far beyond the firewall—and how to use all that information to deliver real-time answers about everything from an individual customer’s credit to the location of a specific cargo container.

Cloud Computing and SOA Convergence in Your Enterprise offers a clear-eyed assessment of the challenges associated with this new world—and offers a step-by-step program for getting there with maximum return on investment and minimum risk. Using multiple examples, Linthicum:

• Reviews the powerful cost, value, and risk-related drivers behind the move to cloud computing—and explains why the shift will accelerate
• Explains the technical underpinnings, supporting technologies, and best-practice methods you’ll need to make the transition
• Helps you objectively assess the promise of SaaS, Web 2.0, and SOA for your organization, quantify value, and make the business case
• Walks you through evaluating your existing IT infrastructure and finding your most cost-effective, safest path to the “cloud”
• Shows how to choose the right candidate data, services, and processes for your cloud computing initiatives
• Guides you through building disruptive infrastructure and next-generation process platforms
• Helps you bring effective, high-value governance to the clouds

If you’re ready to begin driving real competitive advantage from cloud computing, this book is the start-to-finish roadmap you need to make it happen.



Table of Contents:
Preface    xv
Acknowledgments    xxi
About the Author    xxiii

Chapter 1: Where We Are, How We Got Here, and How to Fix It    1
How Things Got Off Track 2
SOA to the Rescue? 4
What the Heck Is SOA, and Why Should I Care? 5
SOA Meets Cloud Computing 7
Defining Cloud Computing 9
The Components of Cloud Computing 11
The Dream Team of Cloud Computing and SOA 14
What SOA Can Learn from Cloud Computing 15
What Cloud Computing Can Learn from SOA 16
Making the Leap 17
Being Positively Disruptive 18

Chapter 2: Reaching for the Clouds    21
Diving Deeper into Cloud Computing 22
What’s New in the Clouds? 25
The Potential Value of the Clouds 28
Cloud Computing Benefits and Drawbacks 28
When the Cloud Fits 33
Doing Something Different 35

Chapter 3: Defining the Clouds for the Enterprise    37
Storage-as-a-Service 39
Database-as-a-Service 41
Information-as-a-Service 43
Process-as-a-Service 48
Application-as-a-Service 51
Platform-as-a-Service 53
Integration-as-a-Service 55
Security-as-a-Service 56
Management/Governance-as-a-Service 57
Testing-as-a-Service 57
Infrastructure-as-a-Service 58
Next Steps 58

Chapter 4: Making the Business Case for Clouds    61
Defining the Holistic Value 62
It Is All about the Business 79

Chapter 5: Working from Your Data to the Clouds    81
Old or New? 82
Data First 84
Selecting a Problem Domain 87
Defining the Information Model 87
Building the Information Model 103
Importance of Data with SOA Using Cloud Computing 105

Chapter 6: Working from Your Services to the Clouds    107
Services Provide the Moving Parts 112
What Is a Service? 116
Understanding Coupling for the Clouds 118
Are You Loosely Coupled? 120
Defining Metaservices 121
Creating the Services Directory 122
The Need for a Service-Level Understanding 126

Chapter 7: Working from Your Processes to the Clouds    127
What Is BPM? 128
Bringing Process to the Clouds 131
Defining Processes 133
SOA, Agility, and Processes 136
Value of BPM for the Clouds 139
Drilling Down on BPM 142
BPM and Cloud Computing 143

Chapter 8: Bringing Governance to the Clouds    145
People and Processes 148
Governance for the Clouds 149
Creating the Governance Model 153
Governance Technology 158
The Value of Service Governance 160

Chapter 9: Testing from SOA to the Clouds    163
Why We Need a New Take on Testing 164
Testing from the Enterprise to the Clouds and Back 165
Creating a Test Plan 173
Black Box Cloud Testing 174
Testing Is Important 177

Chapter 10: Defining Candidate Data, Services, and Processes for the Clouds    179
Where Are the Applications? 180
When Cloud Computing Fits 184
When the Applications and/or Services Are New 193
Jumping to the Clouds 194

Chapter 11: Making the Move to Cloud Computing    197
Selecting Platforms 198
The Process of Moving to the Clouds 203
Analyze and Test Candidate Platforms 209
Select Target Platforms 210
Deploy to Target Platforms 211
What about Private Clouds? 213
New “Cloudy” Platforms 215

Chapter 12: Moving Onward    217

Index 231