Research And Optimization On The Steel-Concrte Powerhouse Of Hytroelectric Power Station

With the rapid development of computer technology, the idea of modern education and the means of teaching are changing continually, while the computer aided Item Bank System is attached more and more importance.Item Bank System is an important means that could guarantee tests high quality, steady level and achieving the goals of tests more effectively.At present, there are many Item Bank Systems in use, which help to improve the teaching methods as well as the quality of the education.With the development of network technology, there is a developing trend that Item Bank System would be applied on Internet.In this article the significance of developing a perfect Item Bank System for modern education was presented firstly.Status of research on Item Bank System of engineering graphics was analyzed in detail.According to the existent defects and the characteristics and actual demands in teaching, the system that emphasizes particularly on testing every points of knowledge in the teaching process was put forward, which meets the needs of phase test in the course teaching and self-testing for students.Secondly, according to the analysis of development of computer pattern and structure of Client/Server, characteristics of test questions of engineering graphics (such as the large quantity of information, complexity of graphics) and characteristics of system (the large quantity brought out by organizing test paper, maintenance and updating Item Bank, etc.and the high demand of the papers' security), it was decided that the system should adopt the C/S structure.Thirdly, the criteria for testing papers and test questions and the requirements of making the papers were expounded.The background database was established and the key techniques were analyzed and the plan was brought forward.Database technology of SQL Server was used in the establishment to store all kinds of test questions and relative information and all the information about users.At the end according to the analysis of the demands of the whole system, the blue print was made out and all the function modules of the arrangement system of test questions were developed based on Visual Basic 6.0, one of the Object-Oriented soft developing tools.The system can inquire, append and modify test questions and can organize test paper automatically and typeset it.The system is interactive and has good maintain ability and a friendly user interface.