SOA

1
SOA

• Chapter 18
• Part 2
• SOA Platforms

2
SOA Platforms

• SOA platform basics
• SOA support in J2EE
• SOA support in .NET
• Integration considerations

3
SOA support in .NET

• Platform overview
• Primitive SOA support
• Support for service-orientation principles
• Contemporary SOA support

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Platform overview
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Architecture components

• ASP.NET Web Forms
• ASP.NET Web Services
• Assemblies

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Runtime environments

• Common Language Runtime (CLR)
• HTTP Pipeline

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Programming languages

• Visual Basic, C, C
• Microsoft Intermediate Language (MSIL)

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APIs

• System.Xml
• System.Web.Services
• As well as
• System.Xml.Xsl
• System.Xml.Schema
• System.Web.Services.Discovery

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Service providers
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Service requestors
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Service agents
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Platform extensions

• Web Services Enhancements

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Primitive SOA support

• Service encapsulation
• Loose coupling
• Messaging

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Support for service-orientation principles

• Autonomy
• Reusability
• Statelessness
• Discoverability

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Contemporary SOA support

• Based on open standards
• Supports vendor diversity
• Intrinsically interoperable
• Promotes federation
• Architecturally composable

• Extensibility
• Supports service-oriented business modeling
• Logic-level abstraction
• Organizational agility and enterprise-wide loose
  coupling

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Integration considerations

• Reasons for new requirements
• Cross-platform interoperability
• Changes to cross-platform interoperability
  requirements
• Application logic abstraction