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SOA is an industry term which is often preached like a religion rather than taught like a technology, and over time, grasping the concept has become unnecessarily difficult. Many companies proclaim that they don't know where to begin with SOA, while others have begun their SOA effort but haven't reaped the benefits they were convinced it would bring. SOA Made Simpleù unveils the true meaning of Service Oriented Architecture and how to make it successful so that you can confidently explain SOA to anyone!
SOA Made Simpleù explains exactly what SOA is in simple terminology and by using real-life examples. Once a simple definition is clear in your mind, you'll be guided through what SOA solves, when and why you should use it, and how to set up, design and categorize your SOA landscape. With this book in hand you'll learn to keep your SOA strategy successful as you expand on it.
SOA Made Simpleù demystifies SOA, simply. It is not difficult to grasp, but for various reasons SOA is often made unnecessarily complex. Service-orientation is already a very natural way of thinking for business stakeholders that want to realize and sell services to potential clients, and this book helps you to realize that concept both in theory and practice.
You'll begin with a clear and simple explanation of what SOA is and why we need it. You'll then be presented with plain facts about the key ingredients of a service, and along the way learn about service design, layering and categorizing, some major SOA platform offerings as well as governance and successful implementation.
After reading SOA Made Simpleù you will have a clear understanding of what SOA is so you can implement and govern SOA in your own organization.
SOA Made Simpleù explains exactly what SOA is in simple terminology and by using real-life examples. Once a simple definition is clear in your mind, you'll be guided through what SOA solves, when and why you should use it, and how to set up, design and categorize your SOA landscape. With this book in hand you'll learn to keep your SOA strategy successful as you expand on it.
SOA Made Simpleù demystifies SOA, simply. It is not difficult to grasp, but for various reasons SOA is often made unnecessarily complex. Service-orientation is already a very natural way of thinking for business stakeholders that want to realize and sell services to potential clients, and this book helps you to realize that concept both in theory and practice.
You'll begin with a clear and simple explanation of what SOA is and why we need it. You'll then be presented with plain facts about the key ingredients of a service, and along the way learn about service design, layering and categorizing, some major SOA platform offerings as well as governance and successful implementation.
After reading SOA Made Simpleù you will have a clear understanding of what SOA is so you can implement and govern SOA in your own organization.
- SOA Made Simple
- Table of Contents
- SOA Made Simple
- Credits
- About the Authors
- About the Reviewers
- www.PacktPub.com
- Support files, eBooks, discount offers and more
- Why Subscribe?
- Free Access for Packt account holders
- Instant Updates on New Packt Books
- Preface
- What this book covers
- What you need for this book
- Who this book is for
- Conventions
- Reader feedback
- Customer support
- Downloading the example code
- Errata
- Piracy
- Questions
- 1. Understanding the Problem
- The importance of information
- Example insurance company
- Mismatch between business and IT
- Duplication of functionality and data
- Example insurance company
- Process silos
- Example utility companies
- Example international software company
- Example insurance company
- Strategies to stay ahead
- Example a software company
- Architecture as a tool
- Layering of architecture
- Models
- Requirements
- Architecture ontology
- Enterprise architecture
- Reference architecture
- Solution architecture
- Project architecture
- Software architecture
- Service Oriented Architecture
- Summary
- The importance of information
- 2. The Solution
- What is a service?
- Elements of a service contract, interface, and implementation
- Example lets have breakfast
- Contract
- Interface
- Implementation
- Example ordering a passport
- Consumer and provider
- Dealing with lots of service providers service registry
- How can you make sure that people use a service?
- Example lets have breakfast
- From sunny-side-up eggs to IT
- Example international software company revisited
- Contract
- Interface
- Implementation
- Consumer and provider
- Reuse
- Example international software company revisited
- Elements of a service contract, interface, and implementation
- Drivers for services
- Common myths
- Every service has to be automated by software
- Every service is a web service
- Consumers of services are always IT systems
- Common myths
- Putting it together what is SOA?
- Solutions
- Example utility company
- International software company changing existing processes
- Functional duplication rationalizing application landscapes
- Standardization enabling change
- Summary
- What is a service?
- 3. Service Identification and Design
- Service identification
- Top-down
- Example of top-down service identification
- Business service identification
- Information service identification
- Technical service identification
- Example of top-down service identification
- Bottom-up
- Meet in the middle
- I have identified my services, now what?
- Top-down
- Service design
- Provide value
- Meaningful
- Implementation hiding
- Trust
- Idempotent
- Isolated
- Interoperable
- Isolation
- Example: print service
- Trust
- Security
- Fault-prevention and handling
- Business faults
- Faulty user input
- Technical and software faults
- Idempotency
- Idempotency and statefulness
- Granularity
- How big should my lasagna be?
- Classification
- Reusability
- Example reusability
- Example good or bad service?
- Service definition revisited
- Summary
- Service identification
- 4. Classification of Services
- Service classification revisited
- Example insurance company
- Other classifications
- Actor type
- Channel
- Organizational boundaries
- Security level
- Architectural layer
- Combining classifications
- Why classify your services?
- Composability
- Aggregation versus orchestration
- Example DocumentService as a composite service
- Aggregation versus orchestration
- Elementary services
- Realization
- Composite services
- Where to put the composition logic?
- Implementation
- Example 1 database link
- Example 2 service invocation
- Process services
- Implementation
- Isolation and composition a contradiction?
- Passing information from smaller to larger services
- Summary
- Service classification revisited
- 5. The SOA Platform
- Overview
- Services
- Implementation
- Using existing software
- Build the implementation
- Interfaces
- Proprietary interfaces
- Web services
- SOAP-based services
- RESTful services
- Contracts and Policies
- Implementation
- Events
- Interfaces for events
- Service composition
- Enterprise Service Bus
- Business Process Management
- Case Management
- Business rules
- User interface
- Integrated user interfaces
- Information mismatch
- Security
- Applying security in your SOA
- Service registry and service repository
- Canonical Data Model
- Design tooling
- Development tooling
- Example Order-to-cash revisited
- Designing the solution
- Developing the solution
- Running the solution
- Summary
- 6. Solution Architectures
- Comprehensive suite or best of breed
- Comparison
- Oracle
- Services
- Events
- Oracle Event Processing (OEP)
- Business Activity Monitoring (BAM)
- Service composition
- Oracle Service Bus
- Oracle SOA Suite
- Oracle BPM Suite
- Business rules
- User interface
- Security
- Registry and repository
- Design tooling
- Design tooling for developers
- Design tooling for business analysts
- Development tooling
- Test tooling
- Testing transformations
- SCA testing framework
- Testing from the console
- Deployment tooling
- Deployment from the IDE
- Deployment from the console
- Deployment using scripting
- Monitoring
- Error handling
- IBM
- Services
- Events
- WebSphere Operational Decision Management
- IBM Business Monitor
- Service composition
- IBM WebSphere Enterprise Service Bus
- IBM Business Process Manager
- Business rules
- User interface
- Security
- Registry and repository
- Design tooling
- Services
- Composite services
- Development tooling
- Test tooling
- Deployment tooling
- Deployment from the IDE
- Deployment from the web interface of the server
- Deployment scripts
- Monitoring
- Error handling
- Microsoft
- Services
- Events
- Message-oriented middleware
- Complex Event Processing (CEP)
- Business Activity Monitoring
- Service composition
- BizTalk Server
- Windows Server AppFabric
- Business rules
- User interface
- Security
- Registry and repository
- Design tooling
- Development tooling
- Test tooling
- Deployment tooling
- BizTalk Server
- Monitoring
- Error handling
- Summary
- 7. Creating a Roadmap, How to Spend Your Money and When?
- Organize the SOA effort
- Business case benefits for different stakeholders
- Business case explained
- Company as a whole
- Example 1 insurance company WATB needs shorter time to market
- Summary of scenarios
- Analysis of the scenarios
- Example 2 insurance company TPIR needs to decrease operational cost
- Summary of scenarios
- Analysis of the scenarios
- Example 1 insurance company WATB needs shorter time to market
- IT
- Example insurance company TMS needs to consolidate systems
- Departmental benefits
- Example insurance company X wants to cut cost
- Analysis of the scenarios
- Approaches
- Example Document Management Service
- Top-down identification
- Bottom-up identification
- Meet in the middle
- Roadmap
- Work packages
- Service by service
- Process by process
- Feature by feature
- System by system
- Comparison
- Work packages
- Maturity and stages
- Stage 0: Starting with SOA
- Stage 1: Newlyweds
- Stage 2: Live
- Stage 3: Growing up
- Stage 4: Experience
- Stage 5: Maintenance
- Summary
- 8. Life Cycle Management
- Service stages
- Versioning of services
- Type of change contract, interface, and implementation
- Changing the contract
- Changing the interface
- Changing the implementation
- Versioning schemes
- Versioning and life cycle stages
- Making the version explicit for service consumers
- Communicating change
- Type of change contract, interface, and implementation
- Tooling
- Standards
- Information needed
- Find services
- Troubleshooting
- Change process
- Registries and repositories in your IT landscape
- Enterprise architecture tools
- Business Process Management tool
- Configuration Management Database
- Bug and issue tracker system
- ESB
- Business Activity Monitoring
- Infrastructure monitoring
- Summary
- 9. Pick your Battles
- Governance
- Architecture process
- Ad hoc business need
- Define the solution
- Deviations
- Integration in the solution architecture
- Planned feature
- Pick your battles
- Ad hoc business need
- Development process
- Pick your battles
- Operations
- Pick your battles
- Change management
- Pick your battles
- Summary
- 10. Methodologies and SOA
- Demand management
- Methodology
- Impact of SOA
- Project management
- Methodology
- Impact of SOA
- Software development
- Methodology
- Impact of SOA
- Application management
- Methodology
- Impact of SOA
- IT service and operations management
- Methodology
- Impact of SOA
- Summary
- Demand management
- Index
- Tytuł: SOA Made Simple
- Autor: APOLLONIA DIKMANS, RONALD VAN LUTTIKHUIZEN, Lonneke Dikmans
- Tytuł oryginału: SOA Made Simple.
- ISBN: 9781849684170, 9781849684170
- Data wydania: 2012-12-20
- Format: Ebook
- Identyfikator pozycji: e_3csa
- Wydawca: Packt Publishing