The Research And Implementation Of Examination Platform Based On IRT

Modern education system requires intelligent platform in university education management and modern examination affairs environment to build.This paper researched and implemented intelligent examination affairs platform under the guidance of the modern education measurement theory based on the computer technology,database technology and network technology,which has building questions storehouse,intelligent marking up examination paper,reviewing and analyzing examination paper,automatic noticing and querying and other multi-kinds of functions.According to analyzing and comparing the Classical Test Theory CTT and the Item Response Theory IRT,proposed the examination system model based on the IRT,which includes several important collections concept:the knowledge structure libraries builded on the curriculum standards,the rule examination question libraries created by the topic generator,the examination paper model libraries generated by the model builder,the electronic examination paper libraries produced by the examination papers builder,etc.The each of electronic examination papers generated by the examination system based on the IRT is according to the examination paper model by parameterized setting from the questions in the extraction of organic combination and debug build,can provide estimates each participant ability accurate statistics.In addition the examination model introduced the knowledge tree,the questions storehouse analyzer,the examination papers model,the model analysis tool and the reviewing paper analyzer,so that the examination system meet the IRT theory requirements and ensure the smooth implementation of examination platform.In the prototype system implementation aspects,the article analyzed the needs of the examining work firstly,the university examination affairs includes three parts:the before of the exam,the exam and the after of the exam.The notification system completes the examination information noticing,the query system completes the scores querying after the exam,the exam system completes creating questions,building examination papers,exam,reviewing papers and analyzing,etc,which is the core module of examination platform.Then the platform is designed by layered mode architecture,including presentation layer,service layer,business layer and data layer,this paper focuses on the business layer.Designed various service units of the examination platforms based on distributed,and implemented the platform with the.Net development.Finally tested and released the platform in the College campus network environment.In addition,the examination platform introduced the SMS gateway through the SMS gateway protocol to achieve docking with the three operators.The SMS with the combination of the examination platform achieves a realtime notification and data query,and provides users with a multi-level and full service.