模拟考试系统的设计和实现.doc

PAGE PAGE 35 模拟考试系统的设计和实现 摘 要 随着计算机技术在现代化教学系统中的广泛应用，以及我国大专院校规模的不断扩大和上级考试的日趋繁琐，模拟考试系统已成为许多学校模拟考试过程中不可缺少的一部分。面向校园公共机房的模拟考试系统，可以看作是教师、学生、机房等教学中不可缺少系统，它是计算机信息管理在学校教学活动中的又一个重要的应用。是基于局域网，具有随机考试、成绩回收、考务管理等功能，适用于院校的无纸化考试系统。 我们将此系统与国内现有的原有的模拟考试系统进行了比较，分析了它的技术可行和经济可行性。同时进行了市场调查，进行了必要的需求分析，最终确定有必要设计这个模拟考试系统。本系统的开发主要包括后台数据库的建立和维护以及前端应用程序的设计两个方面。对于数据库要求实现数据的一致性、完整性和安全性，而对于应用程序则要求功能完善、简洁易用。 经过分析，我们决定前台使用MicroSoft公司的代表性开发工具VisualBasic6.0。后台使用SQL Server2000。并且采用ODBC连接数据库。众所周知，VB开发的应用程序（尤其是数据库应用程序）代码操作数据库效率高、具有组件丰富、语言简单、功能强大的优点。利用VB6提供的面向对象开发思想和各种实用美观的数据库程序，我们能在最短的时间内完成系统开发满足模拟考试系统的需要。 关键字：模拟系统；VB6；SQL Server；ODBC Abstract With modern computer technology in the teaching system in the broad application, as well as the scale of Chinas tertiary institutions are continuously expanding and increasingly complex higher-level examinations, the examination system has been simulated in many schools in the process of mock examinations indispensable part. Campus room for the public examination system simulation can be seen as teachers, students, teaching rooms, and other indispensable system, which is computer information management in the teaching and learning activities in schools is another important application. Is based on the LAN, with random examinations, results recovery, Examination Management, and other functions, applicable to institutions paperless examination system. We see this system and the existing domestic original mock examinations system has been compared and analyzed its technical feasibility and economic feasibility. At the same time carried out a market survey, carried out the necessary analysis of requirements and the need to determine the final design of the mock examinations system. The development of the system including the main background of the establishment and maintenance of database front-end applications, as well as two aspects of the design. The database requirements for data consistency, integrity and security, and application procedures for the functiona