Information System Meta-Synthesis Research Based on SOA

This paper is to about the main contents and basic working principles of information system meta-synthesis based on SOA. In the anterior part of the paper, we explained the current situations of the information system management and working conditions, and pointed out the reasons why we had to think over the disadvantages and advantages of information system meta-synthesis. In the middle part of the paper, we point out the basic principles of SOA, and introduced the layers of the SOA structure. And then, we created a probable architecture of the information system metasynthesis based on SOA. In order to explain more clearly of this structure, the papaer described the mapping relationships between task requests and services by using nodes network structure, and some mathematics methods or models were used to analyze. Some formulas were also used to express the longest and the average distance of the services responding time. Three main physical layers were created in this architecture, public core service layer, service construction layer and service application layer. Each layer contained different services and achieved different functions. Finally, we took a certain area information system as an example to illustrate the main contents of this structure, and analyzed the relationships among those layers. In the end of the paper, we summed up all the advantages and superiorities of information system meta-synthesis based on SOA, and proposed the research keynotes in the future.