Research Of Distributed Application Integration Technology Based On SOA

Information Island has hindered the process of enterprise's information construction seriously, the need of distributed application integration is aggravated gradually with the fact that Internet technology has developed rapidly. However, traditional scheme of distributed application integration sometimes has the serious shortcomings.As a rising architecture, Service-Oriented-Architecture (SOA) came into being to solve the problem of distributed application integration mainly. The scheme of application integration based on SOA can settle the problem of traditional distributed application integration above-mentioned very well. It supports resolving scheme which be realized by service module mode in the middle layer. When more applications that run on the different platform and with different technology have to communication, this system structure is especially suitable.The main work of this paper concentrated on the following parts:Researched traditional scheme of distributed application integration, discussed research value of Service-Oriented-Architecture (SOA), and analyzed research status of SOA and service selecting technology based on QoS.Summarized the framework, implementation technologies and supporting technologies of SOA.Analyzed and designed the framework of distributed application integration system (SOA-DAI), specially analyzed and designed the service selecting based on QoS in detail, and also analyzed the performance of system.Considering a material integration instance, discussed the application of SOA in the distributed application integration system. And applied the technology of service selecting based on QoS to the instance. Then realized the loose distributed application integration and improved the efficiency of selecting service.