The Design And Implementation Of The Computer Testing System Based On Workflow

With the development of the computer technology and widely use of the computer network, online testing and exercise ,which achieve through internet, have become one of the hottest developing aspects in modern education reform. This paper introduces the workflow theory model of this computer online testing system, and its case analysis , function design and implementation,etc.Firstly, the system design background is introduced and domestic and overseas development statuses of this kind of systems are summarized. Considering the special requirement of the system---to implement the distance testing, this paper focuses on the study of workflow ,and describes the workflow theory model.Secondly, the Classical Testing Theory is discussed , and based on this theory , a method to automatically compose the examination paper is designed. In this method ,the key parameters, such as difficulty coefficient, differentiation degree, exposure time span, in the Classical Testing Theory is fully considered, so the examination papers can be composed correctly and efficiently.Thirdly, this paper analyzes the most important technologies which are used in this system, such as database design, analysis of the algorithm for examination paper composition, system interface design, method of grading , grade analysis and the design of system security,etc.Lastly, all the work in this paper is concluded, the future study is explored.