The Design And Implementation Of Eportfolios In Question And Test-Driven Learning System

Based on the study of education evaluation theory,the education statistical theory and the eportfolios theory,in accordance with the actual demands of subject of Question and Test-driven Learning System of the national "Tenth Five-year" key projects of science and technology,this thesis designs an ePortfolios system available for the system and fulfilled the partial functions.The thesis is divided into two parts,namely, designing and fulfilling.Firstly,the designing of ePortfolios modle.According to the basic theory and principle of education evaluation,by analyzing the features of instruction evaluation and studying the models of instruction evaluation, the writer lays the groundwork for the designing of ePortfolios;the studying of the basic theory of educational statistics provids scientific safeguard for the statistics and calculation of the learner and the instructor on the learning process in a scientific manner.The ePortfolios is certainly designed on the basis of the above-mentioned two teaching theories and the full consideration of the actual demands in Question and Test-driven Learning System,and in the view of the ePortfolios's own features and advantages.It can record the learner's study process,including the exercises,tests,and coursewares done by the learners,which could supply original record and important proof in order to evaluate the study effect of learners.The eportfolios has two major functions,and the first one is that the learner can ascend its study process;and the second one is that the learner and the instructor can analyze the study effect of individual learner and the whole class respectively.And it also can analyze the study effect of each individual learner in the class for instructor.Secondly,the fulfilling of ePortfolios.The modle is a minor model of Question and Test-driven Learning System,and correspondingly maintains the consistency with the major system on the technique.In accordance with the actual demands,the partial functions met the minor model has been developed:the exercise record and the grasp situation. Each function concludes for learner parts and for instructor parts, providing difference functions to difference users.For example,the learner may only look up the exercise record;while the instructor may check the any exercise record of the subordinate learners and check the group's learning effect as a whole.In addition,because of numerous users,the modle will produce a lot of records for every learner using Question and Test-driven Learning System in learning process,which will lead to a slower speed that can not meet the needs,with the full consideration of actual situation,in the process of development and maintenance,the writer has optimized the modle by various optimization methods,and the testing result shows that, the optimized modle leads to an faster speed of response.