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1、天津大學(xué)碩士學(xué)位論文基于.NET的遠(yuǎn)程考評系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)姓名:廉彥平申請學(xué)位級別:碩士專業(yè):計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師:張連芳20070501中文摘要本文介紹了作者參與設(shè)計(jì)和實(shí)現(xiàn)的遠(yuǎn)程教學(xué)平臺中的考試與評價(jià)子系統(tǒng),該系統(tǒng)以基于建構(gòu)主義理論的現(xiàn)代教學(xué)模式與教學(xué)評價(jià)方法為指導(dǎo),以因特網(wǎng)為傳輸載體,采用基于B/S模式的架構(gòu)和.Net開發(fā)平臺。目前系統(tǒng)己完成了以下功能:包括試題的添加、刪除等的題庫管理功能,以及按照題型、難度和知識點(diǎn)的多入口查詢;實(shí)現(xiàn)了可由教師自主選擇的試卷生成方法和基于遺傳算法的智能組卷方法;實(shí)現(xiàn)了在線考試功能和教師閱卷功能,解決了系統(tǒng)自動閱卷時(shí)對非唯一確定型試題答案的判斷上的難點(diǎn)和不
2、合理性;除沿用了傳統(tǒng)的計(jì)分型評價(jià)模型外,系統(tǒng)還增加了覆蓋型評價(jià)模型,能從宏觀和微觀兩方面對于學(xué)生進(jìn)行整體的評價(jià);嘗試運(yùn)用SQLServer2000自帶的AnalysisServices工具對考試數(shù)據(jù)庫中的大量數(shù)據(jù)進(jìn)行數(shù)據(jù)挖掘,并得到了一些有價(jià)值的信息。該考試與評價(jià)系統(tǒng)已經(jīng)達(dá)到了需求分析預(yù)期達(dá)到的要求,基本能夠滿足考試與評價(jià)的需要。關(guān)鍵詞:遠(yuǎn)程考評系統(tǒng)B/S模式.NET平臺遺傳算法數(shù)據(jù)挖掘AbstractThispaperpresentsthedesignandimplementationofanremoteonlinetestandevaluationsystem,paticipatedbyt
3、heauthor.Theguidelineofthesystemdesignistheconstruction-basedmodemteachingpatternsandevaluationmethod.And,also,thetransportationcarrier,usedbythesystem,isInternet;thearchitectureofthesystemisbasedonB/Smode;.NETisusedasitsdevelopmentplatform.Tillnow,thefollowingfunctionshavebeencompletedinthesystem:T
4、heproblemdatabasemanagement,includingadditionanddeletionofproblemsbyadministrators;accesstheproblemdatabase,frommultipleentrancepoint,accordingtotypeofproblems,hardnessofproblems,knowledgepointscoveredbytheproblems.Testpapergenerationmethods,whichCanbefreelychosenbyteachers,andtheintelligtenttestpap
5、ercompositionsubsytems,basedongeneticalgorithms.Onlinetestandteacherscoringfeaturearealsoimplementedinthesystem,whichresolvedsomedifficultiesandnonreasonalitiesindeterminingtheanswersforproblemswithuncertaintieswnile.a(chǎn)utomaticallyscoringbythesystem.’Thissystemhasintegratedtwoevaluationmodels,oneisth
6、etraditionalpoints-basedevaluationmodel,andtheotheriscoverage-evaluationmodel.Byusingthesetwokindsofevaluationmodel,theteachercanevaluatethestudentsbothfromnlacroandmicroaspect幻makemoreaccuracyevaluationforstudents.TheauthoralsotriedtOusetheSQLServer2000‘Sdataminingtool‘'AnalysisServices”toanalyzeth
7、elargeamountofdatainthedatabase,andobtainedsomevaluableinformation.Overall,thisonlinetestandevaluationsystemhasachieveditSdesiredgoalspecifiedinrequirementanalysis,andCanmeetthebasictestandevaluationn