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1、Instruction,evaluationandcertificationinwebbasedinstruction(下)论文.freelulationImplementationoftheLlinks,HTML/CGIforms,scriptinglanguage,plug-in,andJava.Eachofthetechniqueshasitsstrengthsandlimitations.Thetechniquesareasunder:Theeasiestandtheearliesttechniqueistheimplementationoftes
2、tingthroughHTMLpages.Inthisimplementation,thequestionispresentedonaaterialoraquestion.Thelinkedpageethodofputingthescoreanddisplayingit.Themainadvantageistheimplementationsimplicityandthefacilitytokeepcountofthescore.Thesystemdoesprovideahigherlevelofsecurityasthestudenthasnoprior
3、ideaoftheresultortheconsequencesofselectionofachoice.Itispossibletoputethescoreanddisplayitforeverychoice.Sincethequestionisonaeconsuming.Sinceactiveareasarelinkedtotheresponsessuchassingleansultiplechoice,truefalse,andpointing.ThesecondandthemostethodforLformsandCGI-pliantevaluat
4、ionscripts.Itiscurrentlybeingusedinanumberofmercialanduniversity-grosandtestdevelopmentisrelativelysimpleandcanbedoneformatthroughHTMLandthenprocesstheinformationcapturedthroughform,usingCGIscripts.TheprocessingcanbeassimpleasparingaofHTMLformandrespondstoitbyfillingappropriatespa
5、cesontheform.Ldocument,theilartotheonesprovidedbyformandCGIscript.Hominglanguage,supportsmoreadvanced,openended,andinteractivequestions.UnlikeformandCGIscript,JavaScriptquestionodeasthequestiontext,informationneededtoevaluatethequestionandtoprovidefeedback,andtheevaluationprograme
6、bundledtogetherasasingleunit,ationofthetestandsolutions.UsingClient-sideJavaScript,itisnotpossibletorecordstudentgrades.HenceJavaScriptplementself-assessmentteststhanforgradingtests.Abinationofclientsideprogrammingthatprovidesthenecessaryflexibilityinchoosingavarietyofinteractiveq
7、uestions,andserversideprogrammingtheserver.Thefourthtechniqueistouseplug-intechnologysuchasMacromedia’sshockationsarerunontheclientmachine.Shockationbasedquestions.ThefifthtechniqueistomakeuseofJava.SinceJavaisapleteprogramminglanguageindependence,Javabinesthebestfeaturesofform/CG
8、IShockoothmunicationbetsolvingetc
