SOA – Service-Oriented Architecture

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SOA – Service-Oriented Architecture

is an architectural style that allows different software systems to communicate and interact with each other as services.

  • Commonly composed of the following components:
  • Service Provider – A web service, application, with a service interface
  • Service Registry – To discover the services
  • Service Bus – It routes messages between different components: Protocol transformation, message transformation, message routing, etc.
  • Business Process Execution Engine – It coordinates the execution of various services.
  • Enterprise Service Bus (ESB) – Provides integration with legacy systems, data transformation, mediation, security enforcement, etc.
  • Orchestration Engine – Controls the flow of execution in complex scenarios
  • Pros: scalability, modularity, fault tolerance
  • Cons: deployment, cost, simplicity, testability, performance, reliability

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