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1、题目面对对象技术学院信息科学与工程学院专业计算机科学与技术班级计软1202学生刘桂斌学号20121214073指导教师史桂娴，王海燕二O—六年三月二十日ObjectTechnology2004,Vol.14(2)，pp.20.ObjectTechnologyTimothyA.BuddAbstractObjecttechnologyisanewapproachtodevelopingsoftwarethatallowsprogrammerstocreateobjects,acombinationofdataandprogr

2、aminstructions.Thisnewtechnologyhasbeensteadilydevelopedsincethelate1960sandpromisestobeoneofthemajoringredientsintheresponsetotheongoingsoftwarecrisis.KeywordsObjecttechnologyOptimization1.1Introductionto0TThereexistsacriticaltechnologythatischangingthewaywcconc

3、eive,build,useandevolveourcomputersystems.Itisatechnologythatmanycompaniesareadoptingtoincreasetheirefficiency,reducecostsandadapttoadynamicmarketplace.ItiscalledObjectTechnology(0T).Byallowingtheintegrationofdisparateandnoncompatiblesource,OThasthepotentialtopre

4、cipitatearevolutionininformationsystemsdesignonaparwiththatcausedincomputerhardwarebytheintroductionofthecomputerchip.YetOTisnotanewphenomenon.Developmentandproductreleaseshavebeenongoingsinceitsoriginmanyyearsago.However,therecentemphasistaskofenterpriseinformat

5、iontechnologyintegrationhasbroughtOTintothespotlight.OTpromisestoprovidecomponent-levelsoftwareobjectsthatcanbequicklycombinedtobuildnewapplicationsthatrespondtochangingbusinessconditions.Onceused,objectsmaybereusedinotherapplications,loweringdevelopmentcostsands

6、peedingupthedevelopmentprocess.Becauseobjectscommunicatebysendingmessagesthatcanbeunderstoodbyotherobjects,largeintegratedsystemsareeasiertoassemble.Eachobjectisresponsibleforaspecificfunctionwithineitheranapplicationoradistributedsystem.Thatmeansthatasthebusines

7、schanges,individualobjectmaybeeasilyupgraded,augmentedorreplaced,leavingtherestofthesystemuntouched.Thisdirectlyreducesthecostofmaintenanceandthetimingandextendibilityofnewsystems.1.2OT-basedProductsThecurrentmarketforOT-basedproductscanbedividedintofourmajorsegm

8、ents:•Languagesandprogrammingtools•Developers'toolkits•Object-Orienteddatabase•Object-OrientedCASEtoolsThelargestsegmentofthecurrentmarketforOT—basedproductsis