A research on multi-layer structure for dynamic service integration an innovative model based on SOA

Recently, SOA plays a more and more important role in software research and software development. On the basis of the research findings on SOA, this paper presents an innovative model for applying SOA: Multi-layer Structure For Dynamic Service Integration (MSFDSI). The paper expatiates on the organization of MSFDSI, on the basis of typical organization of SOA, MSFDSI adds a authorized institution and a service integration & analysis adapter to achieve the service authorization, service analysis and dynamic service integration. The paper also presents the hierarchy of MSFDSI, analyzes its service, proposes innovative concepts of coordination service and procedural service which traditional SOA models never contain, gives the Meta-model for service contracts and describes the main process of MSFDSI. Moreover, this paper gives a real case study of applying this model in a project of "Maritime and shipping integrated system of Yunnan Province". The case study shows that MSFDSI separates the business logic and the specific implementation technology, achieves the dynamic service integration successfully, improves the performance of system and provides a new and effective solution for applying SOA.