A Study on the Integration Model of EIS Based on SOA

Recently, the enterprise application integration has been a crucial requirement for the progress of EIS. However, the integration of those heterogeneous or distributed information systems often encounters problems related to complex management and maintenance, as well as low compatibility. Nevertheless, to totally abandon the former system or to re-develop a new great EIS may result in costly investment, lengthy development cycle and tremendous risk accompanying with the rapid service changes. While, Serviceoriented architecture by adopting the loose coupling application program component technology, provides precisely defined and standardized service interface and reusable service that can assist the EIS engineers to dynamically construct the entire system more speedy, more reliable, and more reusable, and to cope with the demand changes more easily. This paper focuses on the integration model of EIS based on SOA. It proposes the implementation suggestions on SOA system and the rational risk analysis. Then, taking a telecommunication operator as an example, it presents a propositional framework for EIS integration based on SOA.