Improving Business Agility with EDA

Going beyond SOA, enterprises can gain even greater agility by implementing event-driven architectures (EDAs) that automatically detect and react to significant business events. However, EDA planning and deployment is complex, and even experienced SOA architects and developers need expert guidance. In Event-Driven Architecture, four leading IT innovators present both the theory of EDA and practical, step-by-step guidance to implementing it successfully.

The authors first establish a thorough and workable definition of EDA and explore how EDA can help solve many of today’s most difficult business and IT challenges. You’ll learn how EDAs work, what they can do today, and what they might be able to do as they mature. You’ll learn how to determine whether an EDA approach makes sense in your environment and how to overcome the difficult interoperability and integration issues associated with successful deployment. Finally, the authors present chapter-length case studies demonstrating how both full and partial EDA implementations can deliver exceptional business value. Coverage includes

How SOA and Web services can power event-driven architectures
The role of SOA infrastructure, governance, and security in EDA environments
EDA core components: event consumers and producers, message backbones, Web service transport, and more
EDA patterns, including simple event processing, event stream processing, and complex event processing
Designing flexible stateless events that can respond to unpredictable customers, suppliers, and business partners
Addressing technical and business challenges such as project management and communication
EDA at work: real-world applications across multiple verticals

Hugh Taylor is a social software evangelist for IBM Lotus Software. He coauthored Understanding Enterprise SOA and has written extensively on Web services and SOA. He holds an MBA from Harvard Business School. Angela Yochem is an executive in a multinational technology company and is a recognized thought leader in architecture and large-scale technology management. Les Phillips, VP, enterprise architecture, at SunTrust Banks Inc., is responsible for defining the strategic and business IT foundation for many areas of the enterprise. Frank Martinez, EVP, product strategy, at SOA Software, is a recognized expert on distributed, enterprise application, and infrastructure platforms. He has served as senior operating executive for several venture-backed firms and helped build Intershop Communications into a multibillion-dollar public company.

Foreword xi

Preface xii

Introduction 1

Event-Driven Architecture: A Working Definition 1

The “New” Era of Interoperability Dawns 6

The ETA for Your EDA 9

Endnotes 9

PART I THE THEORY OF EDA

Chapter 1 EDA: Opportunities and Obstacles 13

The Vortex 13

EDA: A Working Systemic Definition 14

The (Not So Smooth) Path to EDA 24

Defining Interoperability 26

Drivers of Interoperability 28

Application Integration: A Means to Interoperate 29

Interoperation and Business Process Management 31

Is There a Diet for All This Spaghetti? 35

How Architecture Promotes Integration 37

Management and Governance 39

Chapter Summary 43

Endnote 45

Chapter 2 SOA: The Building Blocks of EDA 47

Making You an Offer You Can’t Understand 47

SOA: The Big Picture 48

Defining Service 49

Service-Based Integration 50

Web Services 51

What Is SOA? 59

Loose Coupling in the SOA 60

Chapter Summary 61

Chapter 3 Characteristics of EDA 63

Firing Up the Corporate Neurons 63

Revisiting the Enterprise Nervous System 63

The Ideal EDA 78

BAM--A Related Concept 86

Chapter Summary 87

Endnotes 89

Chapter 4 The Potential of EDA 91

Introduction 91

EDA’s Potential in Enterprise Computing 91

EDA and Enterprise Agility 100

EDA and Society’s Computing Needs 102

EDA and Compliance 107

Chapter Summary 108

Chapter 5 The SOA-EDA Connection 111

Getting Real 111

Event Services 112

The Service Network 114

Implementing the SOA and Service Network 116

How to Design an SOA 122

The Real “Bottom Line” 134

Chapter Summary 137

PART II EDA IN PRACTICE

Chapter 6 Thinking EDA 141

A Novel Mind-Set 141

Reducing Central Control 142

Thinking about EDA Implementation 148

When EDA Is Not the Answer 151

An EDA Product Examined 153

Chapter Summary 157

Endnotes 158

Chapter 7 Case Study: Airline Flight Control 159

Learning Objectives 160

Business Context: Airline Crunch Time 160

The Ideal Airline Flight Control EDA 167

What FEDA Might Look Like in Real Life 176

Program Success 197

Chapter Summary 206

Endnotes 207

Chapter 8 Case Study: Anti-Money Laundering 209

Learning Objectives 210

Cracking a Trillion Dollar, Global Crime Wave 210

IT Aspects of Anti-Money Laundering 216

EDA as a Weapon in the War on Money Laundering 221

Chapter Summary 259

Endnotes 260

Chapter 9 Case Study: Event-Driven Productivity Infrastructure 261

Learning Objectives 262

The Often Inadequate Human Link in the EDA 262

Overview of Productivity Infrastructure 264

The Potential Benefits of EDA-PI Integration 267

ProdCo, an EDA-PI Integration Scenario 273

Chapter Summary 293

Endnotes 294

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Event-Driven Architecture