逻辑数据库设计 毕业论文外文翻译

《逻辑数据库设计 毕业论文外文翻译》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、附录4外文译文外文原文Inmanyorganizations,databasedevelopmentfromthebeginningofenterprisedatamodeling,datamodelingenterprisesdeterminethescopeofthedatabaseandthegeneralcontent.Thisstepusuallyoccursinanorganization'sinformationsystemplanningprocess,itaimstohelporganizationscreateanoveralldatadescriptionorexpl

2、anation,andnotthedesignofaspecificdatabase.Aspecificdatabaseforoneormoreinformationsystemsprovidedataandthecorporatedatamodel(whichmayinvolveanumberofdatabases)describedbytheorganizationmaintainingthescopeofthedata.Datamodelingintheenterprise,youreviewofthecurrentsystem,theneedtosupportanalysisoft

3、henatureofthebusinessareas,theneedforfurtherdescriptionoftheabstractdata,andplanningoneormoredatabasedevelopmentproject.Figure1showsPineValleyfurniturecompany'senterprisedatamodelofapart.1.1InformationSystemArchitectureAsshowninfigure1,seniordatamodelisonlygeneralinformationsystemarchitecture(ISA)

4、orapartofanorganization'sinformationsystemblueprint.Intheinformationsystemplanning,youcanbuildanenterprisedatamodelasawholeinformationsystemarchitecturepart.AccordingtoZachman(1987),SowaandZachman(1992)viewsofaninformationsystemarchitectureconsistsofthefollowingsixkeycomponents:Data(Figure1shows,b

5、utthereareothermethodsthat).Manipulationofdataprocessing(ofadataflowdiagramcanbeused,withtheobjectmodelmethods,orothersymbolsthat).Networks,whichorganizationsandinorganizationswithitsmaintransmissionofdatabetweenbusinesspartners(itcanconnectthroughthenetworktopologymapandtodemonstrate).Peoplewhode

6、alwiththeimplementationofdataandinformationandis附录4外文译文thesourceandreceiver(intheprocessmodelforthedatashowsthatthesenderandthereceiver).Implementationoftheeventsandtimepoints(theycanusestatetransitiondiagramandothermeans.)Thereasonsfortheincidentanddataprocessingrules(oftenintheformoftextdisplay,

7、buttherearealsoanumberofchartsfortheplanningtoolssuchasdecisiontables).1.2InformationEngineeringInformationsystemsplannersinaccordancewiththespecificinformationsystemplanningmethodsdevelopedinformationsystemarchi