Service Oriented Architecture
Service Oriented Architecture is a technique used in software development based on the concept of Service. A service can be defined as an independent function which is well defined and self contained. In SOA, different services communicate with each other to perform some activity. Even two or more services can be synchronized together to perform some complex activities.
Even though SOA is a new term, the concept of services was introduced long back itself. . The requester requests for some service and the provider implements the service and returns the result for the request. The communication happens in such a way that it is understandable to both provider and requester. Normally, a service has to be published before its usage. These need to be invoked to get the benefits of the published service.
SOA mainly makes use of Web Services in the implementation process. But it does not mean that Web Service is the only method to implement SOA. Other technologies can also be used to implement Service Oriented Architecture. A web service can be defined as a functional component or as an Application Programming Interface (API) which can be accessed over a network. This means that Web services actually reside in some web server and utilized by some Web connected applications.
SOA allows you to develop a complex product by integrating different products from different vendors independent of the platform and technology. Thus, it helps to manage complexity involved. And making effective use of SOA concepts, client can be competent enough as the time needed for the development is considerably reduced because of the reuse. It allows an organization to leverage existing assets, rather than building a new product from scratch without making use of existing ones. This also reduces the software development cycle and the cost involved, thus a faster time-to-market is made possible.
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