Designing Geodata Service Composition Web Application Based on Service-Oriented Architecture

In the environment of service-oriented architecture, geodata web applications may be offered as services for geodata sharing and interoperability. Service composition has emerged to allow multiple functions, fine granularity, and fast access to applications. In addition, service composition can be invoked any time on the web so as to facilitate easier, faster, and much more cost-effective rebuilding. Hence, there is a need for the development of a geodata service composition web application. To ensure smooth and efficient implementation, in this paper, we first present the semantics behind service orientation for geodata service composition to align the technology environment with its business process. Then, Petri nets are employed to model the geodata service composition, and its structural analysis techniques are used to verify deadlock. Finally, the proposal and the implementation of the architecture for the geodata service composition web application are described. This paper offers compliant support for structural integrity in the geosciences from the design phase to the implementation phase.