The Management And Distribution Of The Data Information System In The Space Ground-based Application

With the background of the space ground-based application system, this paper analyses and researches the management and distribution of the data information system.This selected topic has the important realistic meaning.At first,this paper introduces the information systems simply,points out with the development of Internet/Intranet,MIS's construction has extended from Client/Server model to Browser/Server model,and discusses the characteristic and the development method of Browser/Server construction.Following aiming at the characteristic of the data in the space ground-based application system and the demand of the user,we construct a model of three tiers of Browser/Server based on Web.Based on this model, the data information system in the space ground-based application is finally accomplished by using ASP and COM. In this paper,we present the developing process in terms of the technology and the accomplishment for the system.In the technology the work principles of the Web application are deeply discussed in order to emphasize on the technologies, characteristics and advantages of ASP and COM in devoting to the Web application system development,and the methods for developing ActiveX by VC are elucidated as a key contents.In the implementation,the system is composed of three tiers,the client tier,application tier and data tier.All the development are only needed on the application tier and data tier.Data processing is linked to database by using data-oriented COM ADO in ASP,and using ActiveX Control to implement the complex data processing and the display.Some discussion about how to implement the security management of the system is also given.This paper ends with the detail design and implementation of the User Service System.