【作者】 马勇；

【导师】 吕知辛；

【作者基本信息】 山东大学 ， 软件工程， 2005， 硕士

【摘要】 随着软件工程学和网络技术的发展,现有的管理信息系统逐渐暴露了自己的弱点,主要体现在三各方面:不便于高层的信息汇总,阻碍了基于行业的适应性和可扩充性差;不利于不同系统间信息的交流。 本文着重从解决这三个方面的问题入手,提出了“柔性”管理信息系统的模型,着重讲述了系统设计的方法和理论,并给出了“柔性”管理信息系统的定义,以及系统的基于组件的设计范式,体现了使用者既是开发者的主题思想,利用面向对象的循环迭代式软件设计方法,通过对模块间的耦合度和模块内聚合度的分析,来验证系统的科学与先进型。 我们所要设计的“柔性”信息系统,就是要建立一个有一定标准的信息处理接入平台,使应用软件和相关的数据结构能够在授权的前提下能无缝的接入平台,在一定的技术支持下,以群体协作的方式,方便的建立、维护和扩充系统。系统的设计应该包括以下四个模块:接入平台是系统运行与开发的基础;上层管理子系统是系统整个系统的管理中心;用户应用子系统是系统内用户进行信息处理的接口;用户自定义业务子系统接口是系统进行扩充的重要模块,也是体现系统“柔性”的重要标志。我们从系统安全和减轻分布式数据库冗余考虑加入了一个同时具备认证和缓冲的中心定位服务器,类似具有分布式系统中Smart Agent的功能,用于对组件服务器和数据库服务器这样一个逻辑组合进行重定向;利用Wininet对组件实现在线升级和提供对数据库的关系模式的说明了;论证系统的安全性,通过对XML和WebServices的研究给系统B/S模式开发给出一个可参考的模型。更多还原

【Abstract】 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.更多还原