| With the fast development of the education industry, the scale of schools become larger, and many exams and papers need to be managed. To solve these problems and satisfy the demand of teachers with good information skills for education-aided software, General Exam System is studied and developed in the thesis according to the practical situation of schools.Through the analysis of the domestic and foreign examination system, the research purpose and meanings are discussed in detail. The technologies and tools used in the development of examination system are introduced. Through the analysis of actual demand, it designs General Exam System and makes an explanation for its basic function modules. It pays more attention to make a study on the several key technologies in the process of implementing General Exam System. They are the optimization of test database by weight method, generation of test papers by the recursion random division algorithm based on question type, system security, marking papers and so on.Generating test papers is the key problem of system implementation, can be viewed as the multi-objective parameters optimization under a limited condition. After discussing several algorithms of generating test papers, it presents the recursion random division algorithm aimed at their shortcomings. Firstly, the algorithm needs to input parameters for generating test papers. Secondly, it uses probability density function and matrix equation to calculate parameters. Thirdly, it confirms the number of draw-out questions in different types and different difficulty. Finally, it uses the algorithm to generate test papers. The efficient and adaptivity of the algorithm are demonstrated by analyzing the algorithm and evaluating the generated test papers, and the algorithm meets the requirements of examination system well. |
