Service oriented architecture has been defined as a paradigm for organizing and utilizing distributed capabilities that maybe under the control of different ownership domains. It provides a uniform means to offer, discover, interact with and use them to produced desired effects consistent with measurable conditions and expectations.
It is a flexible set of principles used for designing different phases of systems development and its integration in computing. Systems which use service oriented architecture can use interoperable services within several distinct systems.
Service oriented architecture (SOA) ensures that there is a design methodology which is followed while developing a system. This ensures that there is consistency in the services with respect to the vision and roadmap which had been laid down. It also ensures that the architectural principles relating to service orientation are adhered to.
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