| The fast development of information technologies has accelerated the application of information systems in enterprise. It has already made the informationization a worldwide tendency. At the same time, IT also changes the way of information system development. The architecture of client application program in Information System has changed from C/S to B/S. In addition, the design of database has greatly changed. With the high speed development of infotmation technology, Distributed Database System comes about. In some fileds DDBS has been the substitute solutions of CDBS. DDBS has been the hot-point in research.VOLVO Construction Equipment Company is the enterprises that need geographical dispersion and management concentration, at same time the company hope the client have the characteristics such as full utilization of local resources, setup convenience and offline support. The tradition solutions in client can not support all the need in this company, Smart Client is taken into consideration. On another hand, with the demand that the data must be in geographical dispersion and management concentration, the company need the DDBS as databse solutions, which is the integration of network and database systems.The paper strives to analyze the feasibility of Information System development using Smart Client technology and Distributed Database Systems theory, the technology and theory will be further applied to a representative of the enterprise information system design that is the development of the VOLVO Construction Equipment Rent Information System based on the Smart Client technology. The paper is constructed as follows: Firstly, describe and analyzed the traditional Infotmation System client application solution in order to show the advantage of Smart Client technology. Secondly, described the related theories of DDBS such as definition, characteristics, classification, benefits, design and the realization of the technical problems, etc. The database of Information System will be carried out based on these theories. Thirdly, analyzed the business processes and organizational structures of VOLVO Construction Equipment Rent Company, did Requirements Analysis and designed the Information System based on the Requirements Analysis. That was: developed the Office Smart Client in Microsoft Excel 2003 and its VBA; designed the database in Microsoft SQL Server 2005; programmed in C# to develop Web Services; programmed in C#, integrated with Ajax technology, developed Web Pages which provided user with functions like registration and maintenance. Developed the whole VOLVO Construction Equipment Rent Information System, and tested and analzyed the system. Finally, obtained the summary and outlook. The information system had been delivered to the user, and worked well. |
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