The Design And Realization Of Adaptive Test System Based On Flex

People pay more and more attention to and are fond of computer adaptive test for its test time shorter, test results more scientific, test results more adapt to the ability levels, and so on. Computer adaptive test put Item response theory as the guidance in the whole process. Existing web systems of adaptive test are based on HTML pages. With the transmission rate of Internet advancement, Users want to experience richer, more efficient, and more intelligent page representation form, because of they are dissatisfied with traditional page representation form with "mage and text". Based on above considerations, the author proposes the construction of adaptive test system using application based on client (FLEX).This paper analyzes the deficiency of traditional testing based on HTML page firstly.Then introduces related theory and key technologies of the research included response theory which have mainly introduced three parameters model and the estimation of parameter and Flex which overviews the conception of Flex,the advantage of Flex, the technical composition of Flex, and the design patterns of MVC.The third part proposed the design process of adaptive test system based on Flex, including the system architecture design, the detail design of each module, database design, etc. And analysis the process of adaptive test, including how to start the testing, how to choice the next problem, and strategies and conditions of end system testing. And completes development of adaptive test system about "JAVA programming" based on system analysisFinally, according to the system analysis, implement an adaptive test system based on Flex taking IRT as the theoretical basis, using technologies of Flex 3.0 and JZEE, and the three layers MVC design mode.