Implementation of enterprise applications based on service oriented architecture

摘要

In current scenario, It has become important to integrate business and its Information system to achieve their competitiveness. Today a large number of projects fail in achieving business to IT integration. Distributed systems which are large in nature are difficult to develop due to their complexity. The Service Oriented Architecture (SOA) has been identified as the most suitable solution which facilitates to development of distributed systems. SOA helps in developing such distributed system as it supports modular design, inter-interoperability, application integration and software reuse. Enterprises systems which are large in nature need to focus on characteristics i.e. scalability and availability that enhance interoperability and integration of elements. An enterprise is an organization of resources i.e. people, computers, and machines, which performs a process. Enterprise Architecture (EA) is the discipline control resources of the enterprise. EA tasked to ensure Business-IT alignment. Enterprise SOA can be defined as a set of business-aligned IT-services that collectively address an organization's business processes (work-flow) and goals. Services can be orchestrated in many ways to support enterprise business process. Services and Processes are guided by the business architecture and it can be traced back to the business outcomes. Service Oriented Architecture (SOA) help in bridging the gap between business and IT by well defined, business-oriented services developed by using design principles, frameworks, pattern and methods. The objectives of EA and SOA are quite similar.