SOA: Oriented software architecture and services (Service Oriented Architecture), it is a computer software design pattern, is mainly used in barrier applications to interoperate components a protocol, such as a typical network protocol. So SOA is independent of any vendor, product and technology.
SOA as an architecture relies on service orientation, its basic design principle is: The service provides a simple interface to abstract the underlying complexity, users can then access independent services without the need to understand the underlying service platform . SOA-based solutions, and strive to make business objectives and the establishment of enterprise quality system. SOA architecture is five levels: 1. The user interface layer - the application end-user or application of these GUI access / service interface. 2. The orchestration layer - these well-designed application on behalf of the business in terms of service use cases. 3. Service Layer - Service combined, provide real-time services for the entire enterprise. 4. The service component layer - assemblies used to build and services, such as libraries and library technology, technology interface. 5. Operating Systems - this layer contains the data model, enterprise data warehouses, technology platforms. Because SOA architecture implementation is not dependent on the technology, which can be a variety of different technologies
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achieve. For example: SOAP, RPCRESTDCOMCORBAOPC-UAWeb servicesDDSJava RMIWCF (Microsoft's implementation of web services now forms a part of WCF) Apache ThriftSORCER Thus REST, SOAP, RPC, RMI, DCOM, etc. it is a realization of SOA.
