ssd所有exam题目和附标准答案

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1、Exam1Practical-Solutions1.Listtwoofthefactorsthatcontributedtothe"softwarecrisis"intheearlyhistoryofsoftwaredevelopment,andexplainhowsoftwareengineeringlife-cycleapproachesattempttoaddressthosefactors.Manyanswersarepossible.Forexample:highcostofmaintenanceaddressedby

2、betterdocumentation,betterdesignforunderstandabilityandextensibility,formalreviews,testingprocedures,etc;highcostofdevelopmentaddressedbymoreemphasisonanalysisanddesignbeforeimplementationbegins;etc.2.Whatsoftwarelife-cyclemodelwouldyouuseifthereissignificanttechnica

3、lriskandthecustomer'srequirementsarenotwell-knowninadvance?Justifyyouranswerinashortessay.Eitherspiralorrapidprototyping,oracombinationofboth.Spiralhasgoodriskmanagementcharacteristics,andcanbeimplementedtoincludeearlyprototypesorsimulationstoshowtothecustomer.Rapidp

4、rototypingisgoodforclarifyingrequirementswiththecustomer,andcanbeusedtoputearlypressureoncomponentswithtechnicalrisk.3.Theengineersat hypothetical.com adoptedtheincrementalmodelforthedevelopmentoftheirintelligentWeb-basedsearchagent.Afterimplementingversion1.0(whichs

5、upportedbasickeywordsearchingofalistofsitesusingkeywordquery)theyfoundthattheycouldnotimplementversion2.0(whichsupportssearchingusingBooleancombinationsofkeywords)withoutcompletelyre-designingthequerymodule.Whydoyouthinkthisproblemmighthavearisen?Suggesttwowaysthatth

6、eproblemmighthavebeenavoided.Justifyyouranswerinashortessay.Theproblemwasprobablycausedbyalackofdetailintherequirementsanalysisphase,alackofdetailinthedesignphase,orsomecombinationofboth.Moreattentiontodetailintheseareascouldhaveremediedtheproblem,assumingthatallofth

7、ebasicfunctionalrequirementswereknowninadvance.Iftherequirementswereunderspecifiedand/ornotcompletelyknown,thenabetterchoiceofdevelopmentmodelmighthavebeentherapidprototypingmodelorspiralmodel.Or,theincrementalcouldhavebeenusedafteraninitialrapidprototypewasusedasate

8、chniqueforfirminguptherequirements.Whatsoftwarelife-cyclemodelwouldyouuseifthereissignificanttechnicalriskandthecustomer'srequireme