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:100021220(2000)0720760204:1999208219:863öCIMS(863-511-946-003).:,,.3(110006):.,,,,CORBAViaScope.:,ViaScope,CORBA,:TP393:A1,,.,.1,2,,34,--.CORBA,,,,.,ViaScope,IONACORBAOrbix5,,.,2,3ViaScope,4ViaScope.,5.2,..(EIO).EIO.:EIO=oid,7,oidEIO,EIO;7EIO,EIO.EIO,EIO,EIO.1EIO,,,EIO:.1.2.1,,,.,(DSS):DSS=S_data,DMS,S_Metadata,S_data,DMS,S_Metadata,,HTMLCAD.DSS,,.,,.2.2,21720007MINI-MICROSYSTEMVol121No17July2000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved..,.,,.,,,.,,,.2.3.,,.,,,,.,,,,..3CORBAViaScopeEIO,.COR2BA6,,CORBA,(1).2ViaScopeEIOViaScopeCORBA,(2),,.3.1-Internet,,.CORBA.ViaScopeCORBA,.,CORBA.ORB,.,:IP,,1CORBACosLifeCycleLifeCycleObject,.--,.CosNamingNamingContext,,..CosEventCommPushConsumerCosEventCommPushSupplier,.(OTS)CosTransactionTransactionObject,,CORBA,CORBA,.ViaScopeCORBA.3,,CORBA:Orbix_bind(,IP).33.2Intranet,,,.3,EIO.EIO:.-:CORBA,,,1677:3©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.EIO();-:,,,,EIO().3.3,.,OMG,.EIO,EIO..44.1,.,.EODLtypedefsequencestringseq-string;interfaceE-entity:CosTransactional::Resource{booleanconnect-db(instringdbname,instringuser,instringpasswd);booleandisconnect-db();seq-stringlookup-schema();stringlookup-schema(instringtable-name);new-object(instringtable-name,instringquery-lan)update-object(instringtable-name,instringquery-lan)delete-object(instringtable-name,instringquery-lan)query-object(instringtable-name,instringquery-lan)};E_entity,Cos2Transactional::Resource,.,,.,,,,ViaScope(4),Oribx.41)BOAImpl,BOAImpl.:classImpl1:publicvirtualE_entityImpl{...};classImpl2:publicvirtualE_entityImpl{...};,E_entityImplE_entityBOAImpl,,,.2)TIE,DEF_TIE.:classImpl1{...};classImpl2{...};DEF_TIE_E_entity(Impl1)DEF_TIE_E_entity(Impl2)TIE:DEF_TIE_E_entity(Impl1)DEF_TIE_E_entity(Impl2)IDLC++E_entity.,CORBA::Orbix::impl_is_ready().,,,,CORBA::Orbix::impl_is_ready.,.4.2,,,.,.,,,ViaScope.,,,,,.ViaScope..EODL7.,(condition)(action),conditionaction,post_message,.interfaceE-bulletin:{conditionreceive-message(instringmessage),actionpost-message(instringsource,instringmessageinshertevent-type);};EODL4.3,.2672000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.ViaScopeECA:,,.,.,ViaScope,,,,,.,.,(hook),.,,.85,.,,,,,.1O.Richaud,A.Zarli,WONDA:Anarchitecthreforbusinessob2jectsinthevirtualenterprise.COOPSLA’98WorkshoponOb2jects,ComponentsandtheVirtualEnterprise.http:ööwww.cs.tcd.ieöVirtuesöocve98öproceedingsö004.html2A.Wood,Z.Milosevic:Discribingvirtualenterprises:theobjectofrolesandtheroleofobjects.COOPSLA’98WorkshoponObjects,ComponentsandtheVirtualEnterprise.http:ööwww.cs.tcd.ieöVirtuesöocve98öproceedingsö003.html3M.J.ObrienandN.Al2Biqami,VirtualEnterpriseinPractce.COOPSLA’98WorkshoponObjects,ComponentsandtheVirtualEnterprise.http:ööwww.cs.tcd.ieöVirtuesöocve98öpro2ceedingsö011.html4R.Rabelo,L.M.Camarinha2Matos.TowardsAgileSchedulinginExtendedEnterprise.JProc.ofBASYS96,BalancedAutoma2tionSystemÊ,L.M.Camarinha2Matos,H.Afsarmanesh(Eds),Chapman&Hall,Jun.1996,ISBN024122788902X,Cap.41,4134225IONATechnologiesPLC:OrbixDistributedObjectTechnology-2.3cProgrammer’sGuide,Oct.1997.6OMG:TheCommonobjectrequestbroker:architectureandspecification,1998.27.CORBAöIIOPViaScope.R..1999.118X.Yang,G.Wang,G.Yu,D.Lee.ModelingEnterpriseObjectsinaVirtualEnterpriseIntegratingSystem:ViaScope.CProc.5thICSC99,HongKong,China,December1315,1999.LectureNotesinComputerScience,Vol.1749,166175STUDYONENTERPRISEINFORMATIONOBJECTINAVEINFORMATIONINTEGRATINGSYSTEMYANGXiao2chunWANGDanYUGeZHENGHuai2yuanWANGGuo2ren(ComputerLab.,DepartmentofC&SNortheasternUniversityShenyang110006)AbstractModernenterpriseswanttofindoutsomenewinformationintegrationtechniquesunderthepressingcompetition.Invirtualenterprises,differentindependententerprisesaretypicallylargescale,scatteredonInternet,andtheyinvolvedindiffer2entkindsofheterogeneousdataorinformation.Inordertoprovideavalidinformationintegrationplatformtointegratingthoseenterpriseinformation,thispaperpresentsdefinitionsfordifferentkindsofenterpriseinformationservices,andintroducestheimplementationdetailsforenterpriseinformationobjectinaCORBA-basedinformationintegrationsystem--ViaScope.KeywordsVirtualenterprises;ViaScope;CORBA;Enterpriseinformationobject3677:3©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.