SOA and Web Services Interface Design

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

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.

• 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.