The Analysis And Designing Of Distributed Management Information System

With the development of software engineering and network now the shortcuts of the management information system appear. Three main shortcuts are listed out: the first is the data can't be collected easily which holdbacks the statistics and analyses; the second is the system's extension and adaptability are poor and the data structure and code are redundant; the third is the communication of the same kind management information system is weak and the communication risks on some danger.So our "soft" information system is expected to resolve the shortcuts which are mentioned above. We have put forward the definition and model of the "soft" information system, emphasized on the the the developing method and theory ; exercised the development based on the component modeling; put the oriented object method into use. The "soft" information system is supposed to implement the user-the developer thinging and to achieve the advanced and scientific system by reducing coupling between modules and strengthen aggregation of the module.The "soft" information system is a system which have a olatform that can dealing with information of some certain kind, which can make data structure and code easily implanted in with check of user, which can support multi-development and easily be extended and maintenanced. The "soft" information system is composed of four modules: the platform modules, which is the basic module of the system; the management module, which maintenances the access of the system; the operation module, which user can deal with the distributed database by; the user development module which support the user's upload in some certain kind data. Considering the safety of system and reducing the redundance of the distributed database, we establish a center relocate server which must have the ability of attestation and cushion. The center relocate server must run like smart agent of the distributed system which can relocate the logical binded component server and distributed database server. We use wininet to achieve upgrade online and offer the description of the relation pattern ofthe distributed database. We discuss the safety of the system from several aspects. We use XML and Webservices to five a B/S referenced model of the system.