软件工程 课件.ppt

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1、AnIntroductiontoSoftwareEngineeringObjectivesTointroducesoftwareengineeringandtoexplainitsimportanceTosetouttheanswerstokeyquestionsaboutsoftwareengineeringTointroduceethicalandprofessionalissuesandtoexplainwhytheyareofconcerntosoftwareengineersTopicscoveredFAQsaboutsoftwareengineeringPro

2、fessionalandethicalresponsibilitySoftwareengineeringTheeconomiesofALLdevelopednationsaredependentonsoftware.MoreandmoresystemsaresoftwarecontrolledSoftwareengineeringisconcernedwiththeories,methodsandtoolsforprofessionalsoftwaredevelopment.Expenditureonsoftwarerepresentsasignificantfrac

3、tionofGNPinalldevelopedcountries.SoftwarecostsSoftwarecostsoftendominatecomputersystemcosts.ThecostsofsoftwareonaPCareoftengreaterthanthehardwarecost.Softwarecostsmoretomaintainthanitdoestodevelop.Forsystemswithalonglife,maintenancecostsmaybeseveraltimesdevelopmentcosts.Softwareengineerin

4、gisconcernedwithcost-effectivesoftwaredevelopment.FAQsaboutsoftwareengineeringWhatissoftware?Whatissoftwareengineering?Whatisthedifferencebetweensoftwareengineeringandcomputerscience?Whatisthedifferencebetweensoftwareengineeringandsystemengineering?Whatisasoftwareprocess?Whatisasoftwarepr

5、ocessmodel?FAQsaboutsoftwareengineeringWhatarethecostsofsoftwareengineering?Whataresoftwareengineeringmethods?WhatisCASE(Computer-AidedSoftwareEngineering)Whataretheattributesofgoodsoftware?Whatarethekeychallengesfacingsoftwareengineering?Whatissoftware?Computerprogramsandassociateddocume

6、ntationsuchasrequirements,designmodelsandusermanuals.Softwareproductsmaybedevelopedforaparticularcustomerormaybedevelopedforageneralmarket.SoftwareproductsmaybeGeneric-developedtobesoldtoarangeofdifferentcustomerse.g.PCsoftwaresuchasExcelorWord.Bespoke(custom)-developedforasinglecustomera

7、ccordingtotheirspecification.Newsoftwarecanbecreatedbydevelopingnewprograms,configuringgenericsoftwaresystemsorreusingexistingsoftware.Whatissoftwareengineering?Softwareengineeringisanengineeringdisciplinethatisconcernedwithallaspectsofsoftwareproduction.Softwareeng