SOA and Web Services Interface Design

SOA and Web Services Interface Design

Principles, Techniques, and Standards

1st Edition - September 25, 2009

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  • Author: James Bean
  • Paperback ISBN: 9780123748911
  • eBook ISBN: 9780080953830

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In SOA and Web Services Interface Design, data architecture guru James Bean teaches you how to design web service interfaces that are capable of being extended to accommodate ever changing business needs and promote incorporation simplicity. The book first provides an overview of critical SOA principles, thereby offering a basic conceptual summary. It then provides explicit, tactical, and real-world techniques for ensuring compliance with these principles. Using a focused, tutorial-based approach the book provides working syntactical examples - described by Web services standards such as XML, XML Schemas, WSDL and SOAP - that can be used to directly implement interface design procedures, thus allowing you immediately generate value from your efforts. In summary, SOA and Web Services Interface Design provides the basic theory, but also design techniques and very specific implementable encoded interface examples that can be immediately employed in your work, making it an invaluable practical guide to any practitioner in today's exploding Web-based service market.

Key Features

  • Provides chapters on topics of introductory WSDL syntax and XML Schema syntax, taking take the reader through fundamental concepts and into deeper techniques and allowing them to quickly climb the learning curve.
  • Provides working syntactical examples - described by Web services standards such as XML, XML Schemas, WSDL and SOAP - that can be used to directly implement interface design procedures.
  • Real-world examples generated using the Altova XML Spy tooling reinforce applicability, allowing you to immediately generate value from their efforts.


Technology practitioners involved in the design and development of SOA services and service interfaces including enterprise and integration architects responsible for defining company information architecture, computer software engineers who research and develop vendor SOA-based applications, and business solutions architects.

Table of Contents

  • 1. SOA – A Common Sense Definition
    1.1 Origins of SOA
    1.1.1 Technology Becomes a Commodity
    1.1.2 Technology Becomes an Enabler
    1.1.3 Technology Becomes a Transformer
    1.2 A Definition for SOA
    1.3 Consumers, Services, and Intermediaries
    1.4 Messaging - The Means of Interaction between Consumer and Services
    1.5 SOA Capabilities
    1.5.1 The Enterprise Service Bus - ESB
    1.5.2 The Service Registry and Repository - SRR
    1.5.3 Business Process Management - BPM
    1.5.4 Business Activity Monitoring - BAM
    1.5.5 Web Services Management - WSM
    1.5.6 Closing the SOA Loop
    1.6 The Benefits of SOA

    2. Core SOA Principles
    2.1 Loose Coupling
    2.2 Interoperability
    2.3 Reusability
    2.4 Discoverability
    2.5 Governance
    2.5.1 Design-Time Governance
    2.5.2 Bind-Time Governance
    2.5.3 Run-Time Governance

    3. Web Services vs. other Types and Styles of Services
    3.1 Web Services and SOAP
    3.2 ReST Style Services
    3.3 Legacy Services and API’s

    4. Data – the Missing Link
    4.1 Data at Rest – Persistence
    4.2 Data in Motion – Messaged Context

    5. Data Services
    5.1 Multiple and Disparate Data at Rest Sources
    5.2 Resolving Data Impedance with a Data Service
    5.3 CRUD Based Services

    6. Transformation to Resolve Data Impedance
    6.1 Transformation
    6.2 Translation
    6.3 Aggregation
    6.4 Abstraction
    6.5 Rationalization

    7. The Service Interface - the “Contract”
    7.1 Web Services Description Language – WSDL
    7.2 XML Schemas – XSD
    7.3 Extensible Markup Language - XML

    8. Canonical Message Design
    8.1 The message is a hierarchy
    8.2 Top-Down canonical message design
    8.3 Model Driven Interface Design

    9. The Enterprise Taxonomy
    9.1 Focus on Common Business Language for Discovery
    9.2 Broadening and extending the taxonomy
    9.3 Registry Entries and Discovery

    10. XML Schema Basics
    10.1 elements
    10.2 attributes
    10.3 simpleTypes
    10.4 complexTypes
    10.5 groups
    10.6 namespaces
    10.7 import, include

    11. XML Schema Design Patterns
    11.1 complexTypes
    11.2 Referencing Global Declarations
    11.3 Local Element Declarations
    11.4 Reusable Schemas Without Namespaces
    11.5 Reusing and Applying Namespaces
    11.6 Reusing and Applying Namespaces to Schema Assemblies
    11.7 Using substitutionGroups

    12. Schema Assembly and Reuse
    12.1 Namespaces
    12.2 Schema Reuse by Reference and Assembly
    12.3 Limitations and Complexities

    13. The Interface and Change
    13.1 Schema Extension
    13.2 Schema Versioning
    13.3 Change and Capabilities of the ESB and WSM

    14. Service Operations and Overloading
    14.1 Service Granularity
    14.2 Scoping of Service Operations
    14.3 Operations Overloading

    15. Selective Data Fragmentation
    15.1 Grouping Data by Expressed Affinity
    15.2 Avoiding a Complex or Non-Deterministic Content Model

    16. Update Transactions
    16.1 Update Transactions and State
    16.2 Request – Reply Message Exchange Patterns
    16.3 Complexities of Fire and Forget for Updates

    17. Fixed Length Transactions and Nulls

    18. Document Literal Interfaces

    19. Performance Analysis and Optimization Techniques
    19.1 Uniformity of Structure
    19.2 Navigation and Data Graphs
    19.3 Depth of Nesting
    19.4 Verbosity
    19.5 Abstract vs. Specific Cardinality
    19.6 To Validate or Not to Validate

    20. Error Definition and Handling

    A. Appendix
    A.1 Glossary and Abbreviations
    A.2 Web Services Standards
    A.3 Bibliography and References

Product details

  • No. of pages: 384
  • Language: English
  • Copyright: © Morgan Kaufmann 2009
  • Published: September 25, 2009
  • Imprint: Morgan Kaufmann
  • Paperback ISBN: 9780123748911
  • eBook ISBN: 9780080953830

About the Author

James Bean

James Bean is the President and CEO of the Relational Logistics Group. He is the author of the books: the "Sybase Client/Server EXplorer" © 1996 Coriolis Group Books and "XML Globalization and Best Practices" © 2001, and has written numerous magazine articles for technology journals. He is also the Chairman of the Global Web Architecture Group.

Affiliations and Expertise

CEO, Relational Logistics Group, Phoenix, Arizona, U.S.A.

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