Analysis And Design Of Enterprise Railway Dispatching Command System Architecture Based On SOA

With the rapid development of railway technology, the importance of railwayinformation construction has become a consensus in enterprise field. Under the background ofincreasingly fierce market competition, enterprises begin to face more active requirement forinformation construction, which mainly including integrating application system, buildingsynthesized informationalized dispatching command platform, achieving the unifiedmanagement of businesses and the centralized call of functions, and reconstructingapplication program for the quick response to the changes of businesses. With the abstractmethod with service as core, the Service-Oriented Architecture (SOA) divides the businessinto a series of coarse-grained business services and business processes. Having maintainedthe flexibility and interoperability of system in a loosely coupled way, SOA has become themain solution for enterprises to application integration and system architecture.Paper is set in a petrochemical enterprise railway transportation dispatching and centeredon SOA. Based on the deep analysis of related theory and architecture method of SOA,combined with the enterprise of railway dispatching command function requirements andprocess analysis of the business, an SOA solution is developed, which suitable for enterpriserailway dispatching command system.Firstly, the background and significance of designing the enterprise railway dispatchingcommand system with an SOA architecture are introduced, followed by the necessity of itsinformation construction. Then, the system architecture is studied and the functionalrequirements of the subsystems are analysed in detail. As a result, the method and proceduresof building an SOA system are proposed, and the principle of dividing the service granularityis summarized.Secondly, on the basis of analysing the system structure and functional requirement ofenterprise railway dispatching command system, the universal architecture model andhierarchical model applied to it are designed, and the function modules and service categorieswithin each model are analysed in detail. The application mode, structure, module function,deployment way and its main external interface of the core technology about the architecturemodel, Enterprise Service Bus (ESB), are designed. In addition, the service call patterns usedin the system are classified and explained.Finally, some typical business processes of the traffic dispatching in a petrochemicalenterprise are analysed, then an SOA architecture applied to the shunting operation is built,which realizes the business portfolio function and process management optimization.Based on the practice, the SOA theory is used in enterprise railway dispatchingcommand system to analyse the cooperating, extending and integrating problems in it, in the hope of guiding the information construction of enterprise railway.