Multi-layer SOA implementation pattern with service and data proxies for distributed data-intensive application system

Web service is becoming a widely solution used to realize Service Oriented Architecture (SOA). It enables application's business logics interoperable with each other by extending XML flexibility. Current early standardized web service technologies show significant progress in functional aspects interaction, but they are lack of data aspect considerations, such as transferring and integrating large amount of data that are distributed throughout different locations. In this research, we propose a SOA implementation pattern improving coordination of both functional and data aspects to be used across distributed environment by combining several advances in SOA and distributed systems. We define synchronization, replication, and routing mechanism to support distributed systems. This paper introduces the design as preliminary result of our research. It is designed by analyzing previous approach to avoid semantic contradictions of SOA principles and its existing standards and technologies. Next, we need to realize and evaluate them in order to be used in the real application.