E-Services Integration Framework Based on SOA

A group of governmental agencies is connected over a virtual private network (VPN), and uses variant computing systems to perform the daily tasks, they need to exchange formal data electronically, at the same time, and they cannot replace their legacy systems. In this research, I will study this case and propose a suitable solution based on service-oriented architecture (SOA), which has proven highly efficiency within the integration of distributed systems. The research has developed e-services to extract data from the legacy systems as per each agency policy, designed and developed a framework, which will conduct data exchanging between e-services, monitor e-services consuming, notify providers by the recent activities and apply the security policy. In addition, the research has tested the performance of the solution over variable loads, scanned the security gaps and proposed a load balancing method to maintain the stability of the system on subscribers increase in number.