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Network Exam System Design and Implement Base on Delphi

Author: ZhangDongHui
Tutor: JiaoShuHong
School: Harbin Engineering University
Course: Communication and Information System
Keywords: Appraisal system Genetic Algorithms Automatic Test Paper Question Bank
CLC: TP311.52
Type: Master's thesis
Year: 2008
Downloads: 184
Quote: 5
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Abstract


With the economic and social development, the popularity of the concept of lifelong education and the development of computer technology , there has been no paper-based test system . It is conducive to the rapid development of computer-aided instruction , computer science , theoretical science educational measurement product of the combination . In this thesis, the reality from the army has developed a network test systems, information management to achieve a military test and examination process systematization , standardization and automation to improve the military head of examination department efficiency. The system is based on Delphi development tool as a front to SQL Server 2000 database as a background service , using C / S architecture design in order to achieve the candidates database creation and management for the purpose of a test system . It consists of four sub-systems , namely management subsystem, subsystem test , exam management subsystem and scoring subsystem , the main candidate information management, database management and exam questions , grading score and other functions. This test system to strengthen the management of information on the candidates in order to achieve human , computer and information exchange between the data so that the information administrators can effectively manage information , greatly improving the efficiency of the entire examination system information . Army network evaluation system focuses on the automatic generation of network test conducted in-depth research strategy , and in the traditional genetic algorithm based on the research , an improved method, which uses real-coded segments designed to overcome the binary large computation problems, cancel encoding and decoding process, while operations in genetic operators use the same kinds of questions the whole cross- section , paragraph variation method better reflects the test paper questions the basic characteristics and the actual test paper place, which greatly reduces the difficulty of solving the problem of the genetic algorithm to improve the performance and efficiency ; addition, the system also uses adaptive crossover and mutation probability adjustment , increasing the diversity of individuals in a population , effectively inhibit the \System to promote and facilitate the realization of the overall construction of the army , especially information technology has important and far-reaching significance , both to save all kinds of resources , but also reduce the workload leading organs leadership . After the development of the system has a strong practical and very important promotional value.

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