The Research Of Three-Layers Distributed System Based On Web Service

With the rapid development of information technology, the enterprise information construction is paid attention to gradually by community, and play more and more important role in enterprise's management. According to the enterprise informationization application system which the tradition software development pattern develops belongs to the quantity body making to order software, when enterprise's service logic changes, the software needs to promote or to carry on develops. Like this not only wasted the massive manpower, the physical resource and the financial resource, moreover to enterprise's innovation is also one kind of fetter. Meanwhile as a result of management information system service's particularity and complexity, also needs some set of appropriate application procedure to use in its business management.This article discussed the tradition software architecture insufficiency emphatically, introduced three-layers distributed system based on Web Service characteristics, analyzed this kind of software architecture merit and the applicable scope. Then unifies the Changchun University of Science and Technology and the Hitachi medical service unit exploitation Hitachi Enterprise information system subsystem project (In storehouse management system management system) design and development, Has listed the key logical organization, has given a concrete development example.