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1、信息与计算科学毕业设计毕业设计（论文）外文翻译题目高级数据库应用专业信息与计算科学班级学生指导教师11信息与计算科学毕业设计AdvancedDatabaseApplicationsThe1990shaveseensignificantchangesinthecomputerindustry.Indatabasesystems,wehaveseenthewidespreadacceptanceofRDBMSsfortraditionalbusinessapplications,suchasorde
2、rprocessing,inventorycontrol,banking,andairlinereservations.However,existingRDBMSshaveproveninadequateforapplicationswhoseneedsarequitedifferentfromthoseoftraditionalbusinessdatabaseapplications.Theseapplicationsinclude:■computer-aideddesign(CAD);■co
3、mputer-aidedmanufacturing(CAM);■computer-aidedsoftwareengineering(CASE);■officeinformationsystems(OIS)andmultimediasystems;■digitalpublishing;■eographicinformationsystems(GIS);■interactiveanddynamicWebsites.Computer-aideddesign(CAD)ACADdatabasestores
4、datarelatingtomechanicalandelectricaldesigncovering,forexample,buildings,aircraft,andintegratedcircuitchips.Designsofthistypehavesomecommoncharacteristics:■Designdataischaracterizedbyalargenumberoftypes,eachwithasmallnumberofinstances.Conventionaldat
5、abasesaretypicallytheopposite.Forexample,theDreamHomedatabaseconsistsofonlyadozenorsorelations,althoughrelationssuchasPropertyForRent,Client,andViewingmaycontainthousandsoftuples.■Designsmaybeverylarge,perhapsconsistingofmillionsofparts,oftenwithmany
6、interdependentsubsystemdesigns.■Thedesignisnotstaticbutevolvesthroughtime.Whenadesignchangeoccurs,itsimplicationsmustbepropagatedthroughalldesignrepresentations.Thedynamicnatureofdesignmaymeanthatsomeactionscannotbeforeseenatthebeginning.■Updatesaref
7、at-reachingbecauseoftopologicalorfunctionalrelationships,tolerances,andsoon.Onechangeislikelytoaffectalargenumberofdesignobjects.■Often,manydesignalternativesarebeingconsideredforeachcomponent,andthecorrectversionforeachpartmustbemaintained.Thisinvol
8、vessomeformofversioncontroland11信息与计算科学毕业设计configurationmanagement.■Theremaybehundredsofstaffinvolvedwiththedesign,andtheymayworkinparallelonmultipleversionsofalargedesign.Evenso,theend-productmustbeconsistentandcoordinated.Thisissometimesreferredtoa
