SOA With Research And Application In Barter Trade System

Along with the development of computer software techniques and information, barter trade has also been developed rapidly in recent years. The various subsystems which involved in the different departments and agencies managed the different objects, but there are a lot of cross-cutting or even repeated information and data. However, various application systems run independently each other, so these systems within the enterprise become "information islands" and there is no smooth flow of information exchange and share between them. The consequences are described as follows. The update of information and data often occur unsynchronized or even inconsistent in business communication and it causes problems to enterprises during exchanges between different departments. Because many systems require decentralized management and a lot of information need to repeat input that results in a waste of human and material resources. The SOA application integration development plan may solve the integration problem well based on not changing the bottom architecture of enterprise application.This paper first introduces the current barter system problems, describes the theories of SOA, analyzes its background, characteristics and related implementation technology - Web Service, and discusses the relationships between SOA and Web Service. Then with a specific example, this paper analyzes the system's design principles, business process and functional modules. According to barter trade system process and the requirement of the latest business need, this paper introduces SOA into the application field of barter trade and proposes the integration architecture of barter trade system. Then, it designs and develops the system based on SOA, and introduces hierarchical architecture used in the system and how to build web service. The system fully adopts the framework based on SOA. All of functions that are designed by special business are packaged in dependent service. And these Service all have clear definition of interface that can be called easily. Through Enterprise Service Bus, it can call these Service by pre-definition and make into new business process. Moreover, with the changes in business process, it can re-organize these Service. Then it proves the availability and effectiveness of this architecture through instance.