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1、Chapter20ANONLINEMULTIMEDIASYSTEMFORLEARNINGTODESIGNUSERINTERFACESElizabethFurtado,VascoFurtado,KeniaSousa,andArnaldoBelchiorUniversidadedeFortaleza(UNIFOR)Av.WashingtonSoares,1321–BairroEdsonQueiroz-Fortaleza(CE),(Brazil)E-mail:elizabet@feq.unifor.br,vasco@feq.unifor.br,kenia@u
2、nifor.br,belchior@unifor.brURL:http://www2.unifor.br/elizabeth/main.htm–Tel.:+55-85-4763079AbstractThisworkaddressestheproblemoflearninghowto(i)designuserinterfaces(UIs)and(ii)evaluatetheirquality.Wepresentanonlinecollaborativemulti-mediasystem,theTELE-environment,tohelpUIdesign
3、ersandsoftwareen-gineerssolveproblemsofmodeling,usabilityandacceptabilityduringtheen-tiredevelopmentprocess.Thedeveloperaccessestheenvironmentasatoolforassistance,aimingatlearningdesignconcepts,guidelinesandactivities.Dur-ingtheinteraction,theenvironmentprovidesassistancewithtex
4、tualdescrip-tions,examplesandsimilarsolutioncasesindifferentmedia.Moreover,theenvironmentprovidesacollaborativesupportthatallowstheinteractionamongdevelopersinasynchronousorasynchronousway.Keywords:Collaborativelearning,Learningbycases,Onlinelearning,Scenario,UIde-sign,Usecase.1
5、.INTRODUCTIONProblemsofdesigningusableUIsaremainlyduetothenecessitythatthedevelopers,i.e.,designersandsoftwareengineers,havetolearndifferentmodels(taskmodel,implementationmodel,etc.)withdifferentformalisms[4]inanautonomousandquickway.Inaddition,theyhavetofollowmanyguidelinestoim
6、provethewayshumansinteractwithcomputers.Forin-stance,theUIshouldnotdisplayunnecessaryinformation,andthedialogsshouldbesimpleenoughforend-userstogaincontrolofthesystem.Moreo-ver,developmentmethodsdonotprovideefficientwaysfordeveloperstolearnmodelsandguidelines.Amethoddescriptiong
7、enerallyisaguideto229230Furtado,Furtado,Sousa,andBelchiorhelpthedeveloperscreatemodels[6]andtogetagreatamountofwrittenguidelines[3].Theyarealsotruebecausecomputer-basedtoolswhichim-plementthesemethodsandgenerateinterfacesautomaticallyaregenerallydifficulttouse.Usingthesetools,th
8、edevelopershavetowritespecificationsonthedomain
