Service-Oriented Architecture

Service-oriented architecture (SOA) is an integration architecture engineered for flexibility.

SOA design principles define services or interfaces as reusable pieces of software which can be invoked by other applications and combined in a loosely coupled manner to model complete business processes.

This highly distributed approach to integration means individual departments or business units can build out integration projects in incremental chunks, with each subsequent integration connected together into a larger, more global integration fabric. In addition, SOA makes it easier to seamlessly integrate with your business partners and automate many aspects of the supply chain.

Key principles for SOA include:

  • Services refer to business services; updating a loan application is a business service, updating a record in a database isn't
  • Services are linked together to implement business processes. Business Process Engines make it easier to combine services into business processes, and BPEL is now widely accepted as the standard language for this purpose
  • Business partners can use your services within their own business processes and you can use services provided by business partners within your own business processes
  • SOA solutions favour flexibility, focusing on the speed with which business processes can be implemented and changed

The result is a flexible and durable infrastructure that makes it easy to bridge any set of applications, delivering significant business benefit:

  • Lower cost of integration with greater scalability
  • More effective use of existing IT assets to generate improved ROI
  • True any-to-any system connection and collaboration
  • Flexibility to automate business processes and create new applications with reusable business components
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