Service Oriented Architecture (SOA) represents a shift in the paradigm from application specific software sourced by a particular vendor to one based on end-to-end business processes. SOA describes the way a process (service) can be defined in terms of the outcome of the processes (services). It represents a business activity with pre-defined steps (register a warranty, open an account, or request service).
The systems communicate through interfaces to pass only those data elements mapped to subscribe to the service. The service is platform independent and vendor neutral.
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