The Contract And Invoice Of Management System Design And Implementation

In a long time, the management of contract and invoice work basically in the handwork, the enterprise works on a business processing through by Excel or Word documents, in order to improve efficiency, make handwork into computer management, decentralized management into automated management system and make the data of invoice can be shared and search at all times through by Internet, this needs to develop Contract and Invoice of Management System for enterprise actual use. The contract and invoice of Management System is design to help user effective management contract, invoice, shipment, back money and so on, centrally manage the contract and invoice information, quickly and easily provide contracts, invoices, shipment, back money information, at the same time make user can be edit, query and count contracts, invoices, shipment and so on, ensure that the data of contracts, invoices, shipping content integrity, accuracy and validity. By using this system, user can know the information of contract and shipment. In this way, the information of contracts, invoices and shipment can be linked to some information chain and easy to use. It can edit, query, export contracts, invoices and shipment information, user could flexible use these information to process business.The system uses a J2EE-based B/S multi-tier architecture model, using the Java programming language and use mysql database management system. The system consists of contract information management, invoice information management, shipment of information management, pre-payment management, receivables management, back money management and so on. This paper analyzes the composition of the system include:market demand, software requirements analysis, system design goals, data structures and the main characteristics of the system Focuses on the detailed system functional modules realization of ideas and methods, as well as key technology for a detailed description of the system.This article also describes the system knowledge tests, this test method, in principle, and some test cases and test strategies. And the combination of black box testing and white box testing method introduced and discussed methods of testing the system. At the last of this paper summarize some of the problems in the system design and development, some experience and some problems that does not solve. It records some shortcomings that should be perfect in the future exploitation. It is hoped to guide in the future of system development and design.