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1、信息系统开发与管理简答题（Briefanswertoinformationsystemdevelopmentandmanagement）1.themainadvantagesanddisadvantagesofthedistributedstructureofinformationsystemarediscussed.Advantages:itcanconfigureinformationresourcesaccordingtoapplicationrequirementsandaccess.Second,itisbeneficialtogivefullplaytotheinitiative
2、andenthusiasmofusersandimprovetheadaptabilityofthesystem.Thesystemiseasytoexpand.Fourth,thesystemrobustnessisgoodDisadvantages:first,thescatteredinformationresources,development,maintenanceandmanagementstandardsaredifficulttounify.Thesystemsindifferentregionssometimeshaveconflicts,andmanagementcoor
3、dinationisdifficultSafetyandsecuritymeasuresaredifficulttobeunified.2.,thesignificanceandstagedivisionofmanagementinformationsystemlifecyclearediscussed.Theprocessofproducing,developing,maturingandupdatingofmanagementinformationsystemiscalledthelifecycleofmanagementinformationsystem.Itcanbedividedi
4、ntofourstages:systemplanning,systemdevelopment,systemoperationandmaintenance,andsystemupdating.Thesystemdevelopmentphasecanbedividedintothreestages:systemanalysis,systemdesignandsystemimplementation.3.thebasicideasandmainprinciplesofstructuredmethodsforsystemdevelopmentarediscussed.1thebasicidea,st
5、ructuredmethodisthewholeprocessofsystemdevelopmentisdividedintoseveralstages,eachstageofcertainactivities,eachactivitywithaseriesofstandards,specifications,methodsandtechnologytocompleteoneormoretasks,formconformstoagivenproductspecification(results)2.Themainprinciplesofstructuredmethodsare:Princip
6、lesofuserparticipation,logicalandpostphysics,andstrictdivisionofworkstage;Principleofsubordinateitems;thestandardizationprincipleofproductiondescription.4.discussthemainadvantagesanddisadvantagesofthefourthgenerationlanguage.Advantages:highprogrammingefficiency,cangreatlyshortenthedevelopmenttime.T
7、heinterfaceisfriendlyandconvenientfortheaverageusertostudy.Suitableforendusersanddevelopers.Disadvantages:theresultingsoftwarerunspoorly.5.brieflydescribesthebasiccontentoftheoverallstructureofthesystem.The
