银行信息总线系统的研究和原型开发

120053102200531020053102ShanghaiJiaotongUniversityMar.2005,4AbstractTheChineseBankingadoptsinformationtechnologyearlierthanotherindustries.ITbringsbankingaseriesofamazingchangesandsomedemeritsobviouslyatthesametime.Thatisthedifferentsystems,applicationsandplatformsmakethebanksfallenintotheInformationIslandwheretheinformationcannotbeexchangedliquidly.Ontheotherhand,theChinesebankingserviceatpresentisexperiencingtheradicalchangesofseveralsides,suchasthefinancialsystemandpoliciesandthefinanceenvironment,bankingorganizations,patternsofservicesandtheproductoriginality.Alltheseuncertaintiesresultintogreattroubleforthedomesticbankingindustries.Onthebasisofanalyzingthedomesticbankingsystems,thispaperdesignstheInformationBusinordertointegratetheindividualsystemsandrealizetheinformationexchangeamongthemandfinallysolvestheproblemsthebankingsystemsarefacedupwithatpresent.ThispaperexplainsthemainresearchresultoftheInformationBus.Thecontentsarepresentedasfollow.Beginningwiththepresentsituationofthedomesticbankingelectrification,thispaperparticularlyanalyzestheconceptionofdesigningandthetechnologyofrealizationintermsoftheITplatformforthedomesticbanking.Althoughtherearefunctionsofinformationexchange,theplatformcanonlybeusedintheagentbusinesssystembecauseofthelimitationofitsusage.Meanwhile,theoverseasadvancedbankinginstituteshaveplayedtheleadingroleintheworldwidebankingindustry.ThedomesticbankingITsystemscouldlearnandadoptthesetechnologytorealizetheinformationintegration.Now,informationexchangehasbeenbecomethebasicfunctionofEAI(EnterpriseApplicationIntegration).However,itcannotbeimmediatelyintroducedtoandusedbythedomesticbankingsystemsbecauseofthecomplicationofpractice.TheInformationBuscutsthetwoaspects.Itsdesignidearesemblesthedatabusstructureofthehardware.TheInformationBusisurgentandpracticableforthedomesticbankingservicestosolvetheproblemofInformationIsolatedIsland.Bankingdataprocessedbytheapplicationsystemcanbedividedintotwokinds,controllingflowanddataflow,accordingtotheconfiguration-drivenrequirements.Thedataflowincludespracticableelementsofthebankingsystemandtransactionmessages.Thecontrollingflowincludesworkflowofthebusinesstransactions.Bankingdatarelatedwithpresentapplicationsystem,abstractstheinternalandexternaldatadictionaryfromthedataelements,abstractsthemessagepatternsfromtheitsorganicforms,abstractsthemessageheadandbodyfromthetransactionmessages5andabridgeswholetransactionprocesstobeatypicalprocessflow.Theabovementionedkindsofabstractinformationconstructdatastandard,messagestandardandprocessstandardoftheInformationBusandbecomeessentialpartofthedesignoftheInformationBus.InformationBussystemistheresearchcoreofthispaper.Thewholedesignprocedureisputintopracticestepbystepfromabstracttoconcrete.Accordingtotherelationshipbetweendifferentdata,theInformationBusisdividedintothreelevelsofabstractmodels,thatis,thelevelofcommunicationinterface,dataexchangelevelandtransactionservicelevel.Moreover,theInformationBusclearlyexplainsthesituationofthedataamongthesethreelevelsandtheirrelationship.Secondly,theInformationBusconnectstheinformationtogetherbystandarddispositionandformstheconfiguration-drivenpatterninaccordancewiththedataflowandcontrollingflowabstractedfromtheanalysisofbankingdata.Lastly,theInformationBusdescribesthevariousfunctionsofitsindividualpartsandformsthepictureofitsstructure.Thepracticeofprototype,asthemainpart,includesthechoiceofdevelopingtools,designprinciple,divisionofclasses,keysoftwarearchitecture,etc.Itsaimistodisplaythewholepictureofsystemdeployment.Afterfinishingtheprototype,testingandanalysisareimplementedtoproveefficiencyandhighperformanceofexchangingdataandpracticabletocertainbankingbusinessextent.Atpresent,thedomesticbankingsystemhasnotadopttheInformationBusinpractice,buttherequirementofthesefunctionsisexistedurgently.ThusthispaperdealswiththeresearchoftheInformationBusandthedevelopmentoftheprototype.AsthetentativeresearchinthefieldofInformationBus,thispaperhascertainsignificance.KEYWORDS:InformationBus;Integratedchannels;Integratedservices;Datatransformation101.1ATMPOSIDC1018ITITITIT”[1]ITEAI——EnterpriseApplicationIntegrationEAI11EAI1.2IT1.3B/M/SC/M/S123121.41.5123134561422.1ITIT[1]1mainframeIBMES/90002FDDIDDNX.253//C/M/S452.215callCenterTellerATM/P2-1Fig2-1theactualstateofbankingapplicationsystems2.32.3.116[2]/2-2Fig2-2TheAgentBusinessdistributingchart2.3.217BankFirstEAIEAIEnterpriseApplicationIntegrationEAIEAIEAIEAIEAI1EAIERPCRMEAI2EAI3EAIBPR4EAIIDS5EAIMISERPOAEAIEAIITEAIEAIEAI2.4EAIIT18callCenterTellerATM/PCIS/CRM2-3Fig2-3informationbussystemdistributingchartITEAIEAI2.5EAI1933.1ATMPPOSPCallCenter3.2TCP/IP20TCP/IP3-1Fig3-1themodelofinformationbussystem务层讯层数换层统数XMLISO8583报TCP/IPTUXEDOSNA/LU0数报统务213.33.3.13-1Table3-1elementform1234650418.75,20x0B0x1621[1234][0050][01870][0x0B0x16]2[1234][0050][01870][0x0B0x16]3[1234][+0050][+01870][0x0B0x16]4[1234][0050][018.70][0x0B0x16]5[1234][+0050][+018.70][0x0B0x16]3-2Table3-2theelementtypeandattributeBYTESHORTINT4FLOAT4DOUBLE8PACKPACK数ZONEZONESTRINGIMAGE22INTDO