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"In this book, David Linthicum does that rarest of thingscombine 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 GeelanConference Chair, Cloud Computing Conference and Expo seriesSr. VP, SYS-CON Media and EventsMassive, 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 accelerateExplains the technical underpinnings, supporting technologies, and best-practice methods you'll need to make the transitionHelps you objectively assess the promise of SaaS, Web 2.0, and SOA for your organization, quantify value, and make the business caseWalks 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 platformsHelps 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.
Contents
Preface xvAcknowledgments xxiAbout the Author xxiiiChapter 1: Where We Are, How We Got Here, and How to Fix It 1How Things Got Off Track 2SOA to the Rescue? 4What the Heck Is SOA, and Why Should I Care? 5SOA Meets Cloud Computing 7Defining Cloud Computing 9The Components of Cloud Computing 11The Dream Team of Cloud Computing and SOA 14What SOA Can Learn from Cloud Computing 15What Cloud Computing Can Learn from SOA 16Making the Leap 17Being Positively Disruptive 18Chapter 2: Reaching for the Clouds 21Diving Deeper into Cloud Computing 22What's New in the Clouds? 25The Potential Value of the Clouds 28Cloud Computing Benefits and Drawbacks 28When the Cloud Fits 33Doing Something Different 35Chapter 3: Defining the Clouds for the Enterprise 37Storage-as-a-Service 39Database-as-a-Service 41Information-as-a-Service 43Process-as-a-Service 48Application-as-a-Service 51Platform-as-a-Service 53Integration-as-a-Service 55Security-as-a-Service 56Management/Governance-as-a-Service 57Testing-as-a-Service 57Infrastructure-as-a-Service 58Next Steps 58Chapter 4: Making the Business Case for Clouds 61Defining the Holistic Value 62It Is All about the Business 79Chapter 5: Working from Your Data to the Clouds 81Old or New? 82Data First 84Selecting a Problem Domain 87Defining the Information Model 87Building the Information Model 103Importance of Data with SOA Using Cloud Computing 105Chapter 6: Working from Your Services to the Clouds 107Services Provide the Moving Parts 112What Is a Service? 116Understanding Coupling for the Clouds 118Are You Loosely Coupled? 120Defining Metaservices 121Creating the Services Directory 122The Need for a Service-Level Understanding 126Chapter 7: Working from Your Processes to the Clouds 127What Is BPM? 128Bringing Process to the Clouds 131Defining Processes 133SOA, Agility, and Processes 136Value of BPM for the Clouds 139Drilling Down on BPM 142BPM and Cloud Computing 143Chapter 8: Bringing Governance to the Clouds 145People and Processes 148Governance for the Clouds 149Creating the Governance Model 153Governance Technology 158The Value of Service Governance 160Chapter 9: Testing from SOA to the Clouds 163Why We Need a New Take on Testing 164Testing from the Enterprise to the Clouds and Back 165Creating a Test Plan 173Black Box Cloud Testing 174Testing Is Important 177Chapter 10: Defining Candidate Data, Services, and Processes for the Clouds 179Where Are the Applications? 180When Cloud Computing Fits 184When the Applications and/or Services Are New 193Jumping to the Clouds 194Chapter 11: Making the Move to Cloud Computing 197Selecting Platforms 198The Process of Moving to the Clouds 203Analyze and Test Candidate Platforms 209Select Target Platforms 210Deploy to Target Platforms 211What about Private Clouds? 213New "Cloudy" Platforms 215Chapter 12: Moving Onward 217Index 231
