SOA in Practice. The Art of Distributed System Design

Spis treści książki

• SOA in Practice
• Preface
  • What You Should Know Before Reading This Book
  • Structure of the Book
  • Conventions Used in This Book
  • Additional Information
  • Safari Books Online
  • Feedback, Comments, and Questions
  • Acknowledgments
• 1. Motivation
  • Characteristics of Large Distributed Systems
  • The Tale of the Magic Bus
  • What We Can Learn from the Tale of the Magic Bus
  • History of SOA
  • SOA in Five Slides
    • Slide 1: SOA
    • Slide 2: Policies and Processes
    • Slide 3: Web Services
    • Slide 4: SOA in Practice
    • Slide 5: SOA Governance and Management Support
• 2. SOA
  • Definitions of SOA
    • SOA Is a Paradigm
    • SOA Aims to Improve Flexibility
  • SOA Drivers
    • Distributed Systems
    • Different Owners
    • Heterogeneity
  • SOA Concepts
    • Services
    • High Interoperability
    • Loose Coupling
  • SOA Ingredients
    • Infrastructure
    • Architecture
    • Processes
    • Governance
  • SOA Is Not a Silver Bullet
  • SOA Is Not a Specific Technology
  • SOA Versus Distributed Objects
  • SOA Terminology
  • Summary
• 3. Services
  • Services
    • Services Represent Business Functionality
  • Interfaces and Contracts
  • Additional Service Attributes
    • Self-Contained
    • Coarse-Grained
    • Visible/Discoverable
    • Stateless
    • Idempotent
    • Reusable
    • Composable
    • Technical
    • QoS- and SLA-Capable
    • Pre- and Post-Conditions
    • Vendor-Diverse
    • Interoperable
    • Implemented As Web Services
  • Summary
• 4. Loose Coupling
  • The Need for Fault Tolerance
  • Forms of Loose Coupling
    • Asynchronous Communication
    • Heterogeneous Data Types
    • Mediators
    • Weak Type Checking
    • Binding
    • Platform Dependencies
    • Interaction Patterns
    • Compensation
    • Control of Process Logic
    • Deployment
    • Versioning
  • Dealing with Loose Coupling
  • Summary
• 5. The Enterprise Service Bus
  • ESB Responsibilities
  • Heterogeneous ESBs
  • ESB Differences
    • Point-to-Point Connections Versus Mediation
    • Interceptors
    • Protocol-Driven Versus API-Driven ESB
  • Value-Added ESB Services
    • Data Mapping
    • Intelligent Routing
    • Dealing with Security
    • Dealing with Reliability
    • Service Management
    • Monitoring and Logging
    • Business Activity Monitoring (BAM)
    • Service Implementation Support
  • Summary
• 6. Service Classification
  • A Fundamental Service Classification
  • Basic Services
    • Basic Data Services
    • Basic Logic Services
    • Fundamental SOA
  • Composed Services
    • Composed Services for Multiple Backends
    • Composed Services for One Backend
    • Federated SOA
    • Security
  • Process Services
    • Process-Enabled SOA
    • Service State Versus Backend State
  • Other Service Classifications
    • Dealing with Different Types of Consumers
    • Reading Versus Writing Services
    • Business Categorizations
      • Categorization according to Erl
      • Categorization according to Allen
  • Technical and Infrastructure Services
  • Beyond Services
  • Summary
• 7. Business Process Management
  • BPM Terminology
  • BPM and SOA
  • Example for BPM with Services
  • Business Process Modeling
    • Using Business Process Modeling Tools
    • BPEL
    • Other Business Process Modeling Standards
    • Business Process Modeling with BPEL in Practice
  • Other Approaches to Identifying Services
    • Portfolio Management
    • Dont Switch Off Your Brain
  • Orchestration Versus Choreography
    • Choreography and SOA
  • A Few More Things to Think About
  • Summary
• 8. SOA and the Organization
  • Roles and Organizations
    • From Monolithic Systems to Distribution
    • Solution Management
    • Collaboration
    • Management Support
  • Funding Models
  • Summary
• 9. SOA in Context
  • SOA-Based Architecture Models
    • Logical Architecture Models
    • Mixed Architecture Models
    • Technical Architecture Models
    • Choosing the Right Architecture Model
  • Dealing with Frontends and Backends
    • Roles and Responsibilities
    • Multilayer Validation
    • Multifrontendchannel Scenarios
    • Multiapplication Frontends
    • Future Management
  • Summary
• 10. Message Exchange Patterns
  • Introduction to MEPs
  • Basic MEPs
    • Request/Response
    • One-Way
    • Request/Response Versus Two One-Way Messages
  • More Complicated MEPs
    • Request/Callback
    • Publish/Subscribe
  • Dealing with Reliability and Errors
    • Fault Messages
    • Technical Errors
  • Dealing with Different MEP Layers
  • Event-Driven Architecture
  • Summary
• 11. Service Lifecycle
  • Services Under Development
    • Iterative Service Development
    • Service Identification
  • Services in Production
    • Modifying Services in Production
    • Withdrawing a Service
  • Summary
• 12. Versioning
  • Versioning Requirements
  • Domain-Driven Versioning
    • Trivial Domain-Driven Versioning
    • Nontrivial Domain-Driven Versioning
  • Versioning of Data Types
    • Using Different Types for Different Versions of a Data Type
    • Using the Same Type for Different Versions of a Data Type
    • Using Generic Data Types
    • Summary of Versioning of Data Types
  • Configuration-Management-Driven Versioning
  • Versioning in Practice
    • Modifications Should Impact Only the Provider and Consumer(s)
    • Call Constraints Should be Considered
  • Summary
• 13. SOA and Performance
  • Where Performance Matters
  • From Remote Stored Procedures to Services
  • Performance and Reusability
    • Call Constraints
    • Customized Services
    • Reusability in Practice
  • Performance and Backward Compatibility
  • Summary
• 14. SOA and Security
  • Security Requirements
  • Dealing with Security Requirements
    • Interoperability Versus Security
    • Heterogeneity and Security
    • Distributed Processes and Many Layers of Abstraction
    • Multiclient Capabilities
  • SOA Security in Practice
    • Infrastructures Dont Provide Sufficient Security
    • Dealing with Confidentiality and Integrity
    • Security as a Service
    • Security, Performance, and State
    • Security in Reality
  • Security with XML and Web Services
    • SAML
    • XML and Web Services Security Standards
    • XML and Web Services Attacks
  • When Security Comes into Play
  • Summary
• 15. Technical Details
  • Services and State
    • Stateless Services
    • Stateful Services
    • Why Stateless Services Are Better
    • Stateless Services in Practice
  • Idempotency
    • Idempotent Services
    • Implementing Idempotency
  • Testing and Debugging
    • Unit Tests
    • Distributed Testing
    • Correlation IDs
  • Dealing with Technical Data (Header Data)
  • Data Types
    • Fundamental Data Types
    • Reference Semantics
    • Higher Data Types
  • Error Handling
  • Summary
• 16. Web Services
  • Motivation for Using Web Services
    • What Are Web Services?
    • History of Web Services
  • Fundamental Web Services Standards
    • WSDL
    • WSDL by Example
    • SOAP
    • UDDI
  • Web Services in Practice
    • Open Standardization
    • Protocol Aspects
    • The WSDL Lifecycle
    • WSDL Deficits
    • So, Should You Use Web Services?
  • Closing Notes
  • Summary
• 17. Service Management
  • The History of Service Brokers
  • Repositories and Registries
    • Designing Repositories and Registries
    • Establishing Repositories and Registries
  • Summary
• 18. Model-Driven Service Development
  • Generated Service Code
  • Modeling Services
    • Terminology
    • The Model-Driven Tool Chain
  • Meta Models in Practice
  • Setting Up MDSD Processes
    • Consumer-Driven Transformations
    • Provider-Driven Transformations
    • Third-Party-Driven Transformations
    • MDSD Processes in Practice
    • Labeling
    • Debugging
    • Manually Modified Generated Code
    • The Code-Generation Granularity Dilemma
    • Deployment and Robustness
  • Tools
    • XSLT
    • MDSD Tools
  • Avoiding Bottlenecks
  • Summary
• 19. Establishing SOA and SOA Governance
  • Introducing SOA
  • SOA Governance
    • Definition of Governance
    • Central SOA Teams
  • SOA Step-by-Step
    • Step 1: Understand SOA
    • Step 2: The SOA Pilot
    • Step 3: The Second and Third SOA Projects
    • Step 4: Grow and Become a General Strategy
    • Tasks Necessary over All Steps
  • Other SOA Approaches
    • The Four Ps, by Pulier and Taylor
    • Architectural Roadmap, by Krafzig, Banke, and Slama
    • Top-Down or Bottom-Up, by Krafzig and Slama
    • SOA Drivers, by Anne Thomas Manes
    • Essence of Different SOA Approaches
  • Additional Recommendations
    • Policies
    • Dealing with People
    • SOA Maturity Models
  • Summary
• 20. Epilogue
  • Is SOA Something New?
  • Does SOA Increase Complexity?
  • What Are the Key Success Factors for SOA?
  • Where Is SOA Not Appropriate?
  • Does SOA Replace OOP?
• References
• Glossary
• Index
• About the Author
• COLOPHON
• Copyright

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