In recent years, with the development of network technology, the shortcomings of traditional bidding has become more and more obvious, so development of online bidding system has great practical significance and value.online bidding system take full use of the convenience of network and information ,it make traditional biddding become an online activites,it can link various roles such as bidders,tenders,bid evaluation and supervision together.online bidding system makes full use of theInternet's advantages such as low costs,wide coverage,and open to every.all this make the traditional open-bidding activities become simples and efficient. After the analysis of research projects in the background, status ,we select B/S structure for the system archtecture based on the analysis of traditional bidding process and characteritics,system select the popular system development portfolio PHP + MySQL. For B/S system for the development language, Specific work of this thesis is as follows:1. get the system demand analysis before the design and inplementation of the system,after cosidering the kinds of users when we move traditional bidding system to online we get six kinds of users:normal user,tender,bidder,bid evaluation,system administrators and database administrators. we get users involved in this system.then we get case analysis of every user。after all of that we get performance requirements analysis of the system from the response speed, error handling and exception recovery respect2. after demand anslysis,we begin to design system function modules,before design the modules of the system,we analyze the functional requirements for various types of users of the system. some of these modules can be repeated and summarized and the we get the main function modules:tender management module,bid management module,evaluation management module,award management module,document management module,basic information management module,statistics and query management module,the message management module, user management module, and centralized database management module. module of the system after the completion of the database that lists the need to use the data table.3. implementation of the system.we inplement some important module and interface. Including: system login interface,tender management module,bid management module,evaluation and search management module,bid management module and the user management module4. system testing is the most important part after the completion of system,we have done system test environment,system test design and system test process analysis.after this tasks,we get the test results. |