SOA Principles of Service Design

by Erl, Thomas

• ISBN13: 9780137127832
• ISBN10: 0137127839
• Edition: 1st
• Copyright: 2008-01-09
• Publisher: Pearson

Summary

The Definitive Guide to Service Engineering

The key to succeeding with service-oriented architecture (SOA) is in comprehending the meaning and significance of its most fundamental building block: the service. It is through an understanding of service design that truly “service-oriented” solution logic can be created in support of achieving the strategic goals associated with SOA and service-oriented computing. Bestselling SOA author Thomas Erl guides you through a comprehensive, insightful, and visually rich exploration of the service-orientation design paradigm, revealing exactly how services should and should not be designed for real-world SOA.

 

This book’s in-depth coverage includes

• Over 240 full-color illustrations.
• A concise introduction to SOA and service-oriented computing concepts and benefits.
• A thorough exploration of the service-orientation design paradigm as represented by eight specific design principles.
• A comparison of service-oriented and object-oriented concepts and principles and a clear definition of what qualifies as “service-oriented” logic.
• Detailed coverage of four different forms of service-related design granularity.
• An exhaustive examination of service contracts, with an emphasis on standardization, abstraction, and the utilization of WS-Policy, XML Schema, and WSDL definitions.
• A comprehensive study of positive and negative service-related coupling types with an emphasis on the requirements to attaining a suitable level of loose coupling.
• An inside look into how commercial design approaches are incorporated to achieve truly agnostic and reusable service logic.
• Techniques for maximizing service reliability, scalability, and performance by instilling high levels of autonomy and emphasizing stateless design.
• Approaches for positioning services as highly discoverable and interpretable enterprise resources.
• Unprecedented coverage of how to design services for participation in complex compositions.
• The definition of concrete links between each design principle and the strategic goals and benefits of SOA and service-oriented computing.
• Numerous cross-references to key design patterns documented separately in SOA: Design Patterns.

 

 

Author Biography

Thomas Erl is the world’s top-selling SOA author, the Series Editor of the Prentice Hall Service-Oriented Computing Series from Thomas Erl, and Editor of The SOA Magazine.

 

With over 65,000 copies in print, his first two books, Service-Oriented Architecture: A Field Guide to Integrating XML and Web Services and Service-Oriented Architecture: Concepts , Technology , and Design have become international bestsellers and have been translated into several languages. Books by Thomas Erl have been formally reviewed and endorsed by senior members of major software organizations, including IBM, Sun, Microsoft, Oracle, BEA, HP, SAP, Google, and Intel.

 

Thomas is also the founder of SOA Systems Inc. (www.soasystems.com), a company specializing in SOA training and strategic consulting services with a vendor-agnostic focus. Through his work with standards organizations and independent research efforts, Thomas has made significant contributions to the SOA industry, most notably in the areas of service-orientation and SOA methodology.

 

Thomas is a speaker and instructor for private and public events, and has delivered many workshops and keynote speeches. For a current list of his workshops, seminars, and courses, see www.soatraining.com.

 

Papers and articles written by Thomas have been published in numerous industry trade magazines and Web sites, and he has delivered Webcasts and interviews for many publications, including the Wall Street Journal.

 

For more information, visit www.thomaserl.com.

 

Table of Contents

Preface xxv

 

Chapter 1: Introduction 1

Chapter 2: Case Study Background 19

 

Part I: Fundamentals

Chapter 3: Service-Oriented Computing and SOA 25

Chapter 4: Service-Orientation 67

Chapter 5: Understanding Design Principles 103

 

Part II: Design Principles

Chapter 6: Service Contracts (Standardization and Design) 125

Chapter 7: Service Coupling (Intra-Service and Consumer Dependencies) 163

Chapter 8: Service Abstraction (Information Hiding and Meta Abstraction Types) 211

Chapter 9: Service Reusability (Commercial and Agnostic Design) 253

Chapter 10: Service Autonomy (Processing Boundaries and Control) 293

Chapter 11: Service Statelessness (State Management Deferral and Stateless Design) 325

Chapter 12: Service Discoverability (Interpretability and Communication) 361

Chapter 13: Service Composability (Composition Member Design and Complex Compositions) 387

 

Part III: Supplemental

Chapter 14: Service-Orientation and Object-Orientation: A Comparison of Principles and Concepts 445

Chapter 15: Supporting Practices 477

Chapter 16: Mapping Service-Orientation Principles to Strategic Goals 497

 

Appendices

Appendix A: Case Study Conclusion 513

Appendix B: Process Descriptions 517

Appendix C: Principles and Patterns Cross-Reference 529

 

Additional Resources 533

About the Author 535

About the Photos 537

Index 539