Service oriented architecture

I present a survey that describes service oriented architecture. I made an sample applicationon Oracle BPEL by using Oracle SOA Suite for demonstration issues using it. I maderesearches about properties of service oriented architecture, advantages and disadvantages ofit. Besides, the past studies that were made by using SOA has been analyzed. In this thesisprinciples of service oriented architecture are explained.Service oriented architecture can be used in different areas by the help of its properties andadvantages. It can be adopted to different platforms easily. The use of SOA in applicationsdecreases the development time but making services at the beginning is not good in termseffort. The main advantage of service oriented architecture is reusability, a service can beused in different applications and there is no need to make any changes on the service. Tohave the description of any service is adequate to use it. A service can be used by sending thenecessary parameters to the service.In application part, an application has been developed step by step by using the properties ofservice oriented architecture.