| Summary: | 碩士 === 中原大學 === 資訊管理研究所 === 100 === Information Technology plays an important role in today's enterprise, the enterprise business model is tight, it is changed from the external environment every time, enterprise information systems should keep update to conform to the business needs, but traditional enterprise system architecture is too complex and too difficult to maintain, so service-oriented architecture (SOA) is proposed to solve these problems.
SOA is services and service between loosely coupled distributed architecture, individual services can go operation, and the goals of SOA is to make the information system can change when it need, so it is On-Demand, but traditional technology is too tight , and the J2EE architecture is depend on the EJB. Therefore, that will make too difficult to maintain. In this study will be use Inversion of Control(IoC) to improve the existing technical services problem.
In order to solve the distributed system to make it be loosely coupled, using IoC to increase flexibility in each container, and the mutual coupling relationship to reduce, making the whole structure to be more efficient, and finally to achieve the purpose of On-Demand.
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