| The project of mathematical auto-generating test paper system comes from the actual demand of unit. In this paper, based on reading a large number of literature material, the author conclude that the item bank system and technology of generating test paper is developing fast at home and abroad currently, and the software of the auto-generating test paper system is an important part of Computer Assisted Instruction. There is great prospects for development.This paper interduces the related theory of item bank, including the definition and function of item bank and the Classical Test Theory, and summarizes the construction principle of item bank. Based on the idea of randomized algorithm, combined with the priority strategy, error compensation strategy, distribution of knowledge points strategy, a simplified algorithm is thinked up, generating test paper of each topic.The parameters of users to set in the test paper is simplified by the algorithm, and it also can automatically calculate the number of distribution at all levels of questions difficulty according to each type of question with appointed average difficulty.The process of generating test paper is random, scientific and reasonable and the rate of success is high. According to the actual demand and the literature data, the whole system is designed by four modules, which are user management, system management, question management and paper management.The design process of the algorithm and system is elaborated in the paper. The project finally adopted VB6.0 and SQL Server2000 as development tools, implemented the mathematical auto-generating test paper system based on C/S mode.The system includes two exams of high school math courses and advanced mathematics,it can achieved all kinds management of questions,item of additions deletions and changes,required automatically test paper,paper editing and output functions,it can be directly manipulated the photo-text by Word document.The system which has already been put into operation,can be easier to operate, and is high reliability. The system will play an important role on promoting the automation,standardization and informatization of work in test paper generation, improving work efficiency, saving manpower cost ,and enhancing the economic benefits etc. |
