面象服务的体系架构PPT演示课件

1,面向服务的体系架构(SOA),管理资源吧（），提供海量管理资料免费下载！,3,日程,什么是面向服务的体系架构SOA的价值构成SOA的技术如何构建SOA系统IBM的SOA工具与产品网格计算与SOA,管理资源吧（），提供海量管理资料免费下载！,4,一个组件模型将应用程序的不同功能单元（服务）通过这些服务之间定义良好的接口和契约联系起来。接口是采用中立的方式进行定义的，它应该独立于实现服务的硬件平台、操作系统和编程语言。构建在各种这样的系统中的服务可以以一种统一和通用的方式进行交互。,什么是面向服务的体系架构?,管理资源吧（），提供海量管理资料免费下载！,5,为什么采用面向服务的体系架构?,AServiceOrientedArchitectureenablesflexibleconnectivityofapplicationsorresourcesbyRepresentingeveryapplicationorresourceasaservicewithastandardizedinterfaceEnablingthemtoexchangestructuredinformation(messages,documents,businessobjects)MediatingthemessageexchangethroughanEnterpriseServiceBusThisflexibilityenablesnewandexistingapplicationstobeeasilyandquicklycombinedtoaddresschangingbusinessneeds.Theabilitytoeasilycombine/choreographapplicationsallowsITservicestomorereadilyreflectbusinessprocessesTheSOAinfrastructureisalsousedtofacilitatethemanagementofbusinessperformanceandqualityofservice,管理资源吧（），提供海量管理资料免费下载！,6,SOA的价值:SOA实现可变的IT架构,管理资源吧（），提供海量管理资料免费下载！,7,构成SOA的技术,什么是服务服务调用服务的编排服务的发现,管理资源吧（），提供海量管理资料免费下载！,8,什么是服务?,Awell-defined,invokableunitofbusinessfunctionAccessesbusinessdataorfacilitatesachangeofbusinessdatafromonevalidandconsistentstatetoanother.DefinedusingexplicitinterfacesIndependentofserviceimplementationsProvidescontractbetweenservicerequestorsandserviceprovidersInvokablethroughcommoncommunicationprotocolsProvidesinteroperabilityandlocationtransparency.,管理资源吧（），提供海量管理资料免费下载！,9,服务描述,Servicesaredescribedusingastandardizedinterface(metadata)Definestheservice,itsoperations,andinputandoutputparametersDefineshowtheserviceisreachedanditslocationInputandoutputsmaybesimpleparametersorXMLdocumentsAnexistingapplicationcanbegivenaservicefaadeThefaade(e.g.anEJB)isthendescribedastheserviceWebServicesDescriptionLanguage(WSDL)isthestandardusedtodescribetheservice,管理资源吧（），提供海量管理资料免费下载！,10,服务描述:WSDL,WSDL(WebServicesDescriptionLanguage)isanXMLdocumentthatdescribesaServiceusinganumberofkeyelements:APortTypedefineswhattheservicedoes,andisdescribedbyanumberofoperations.ForeachoperationthedatathatitreceivesandsendsisdescribedbyaMessageTheBindingdefineshowtheservice(asdescribedbythePortType)isinvokede.g.SOAP/HTTP,SOAP/JMS.ThePortspecifiestheaddresswheretheserviceislocated,管理资源吧（），提供海量管理资料免费下载！,11,服务调用,ServicesinteractbyexchangingdataoveranEnterpriseServiceBusTheEnterpriseServiceBusisalogicalarchitecturalconstructProvidesinter-connectivityservicesServicesinteractwitheachotherbasedonthequalityofservicerequirementsoftheindividualtransactionsESBconnectsandintegratesanenterprisesITbusinessIndifferentlocations,usingdifferenttransports,acrossorganizationsESBmediatesservicerequestsandresponsesPerformstransformationandroutingEnablesconnectiontypetransparencyESBenablestheuseofmultipleprotocolse.g.SOAP/HTTPcanbeconvertedtoSOAP/JMSandviceversa,管理资源吧（），提供海量管理资料免费下载！,12,企业服务总线(ESB)CentraltotheWorkingsofaServiceOrientedArchitecture,TransportServicesSynchronous/AsynchronousPersistent/Non-persistentLoosely-coupled/Tightly-coupled,EventServicesPublishandSubscribe,MediationServicesRoutingTransformation,StandardsBasedHTTP/HTTPSwithoptionforWS-ReliableMessagingJMS,JAX-RPC,SOAPWS-Security,WS-Policy,WS-Addressing,管理资源吧（），提供海量管理资料免费下载！,13,服务的编排术,BusinessprocessesareasetofactivitiescarriedoutinasequenceServicescanbechoreographedtoimplementabusinessprocessi.e.eachsteporactivityinabusinessprocessisimplementedbyaserviceThebusinessprocessitselfbecomesaserviceServicechoreographyisdescribedbytheBusinessProcessExecutionLanguage(BPEL)AstandardproposedtoOASISforprocessdefinitionServiceChoreographyprovides:ProcessesthatcombineapplicationsandpeopleTransactionalityandcompensationManipulationofprocessdata,管理资源吧（），提供海量管理资料免费下载！,14,服务的发现,AServiceRegistryorDirectoryPublishesservicedescriptionsFindsbusiness,servicesandserviceinterfacesUDDIisastandardforaregistrywebservice(seeUDDI.org)ServicediscoverymaybeatdesigntimeorruntimeWebSphereStudioprovidesWebServicesExplorertopublishandsearchUDDIUDDIServiceentriescontainURLofitsWSDLAUDDIdirectorymaybeprivatetoanenterpriseWSDLforservicesmaybestoredinlocalfilesanddirectoriesESBmediationsmaybeusedtodetermineserviceslocationatruntime,ServiceRegistry,管理资源吧（），提供海量管理资料免费下载！,15,SOA的服务栈,SOAusesWebServicesspecificationstoimplementitsfeaturesManyWebServicesspecificationsarebeingstandardizedIBMandothervendorshaveimplementedthesespecifications,anticipatingthestandardsTheWebServicefunctionstackisrichandgettingricher,管理资源吧（），提供海量管理资料免费下载！,16,如何构建SOA的系统,DevelopaserviceorientedmentalityEverythingisaserviceUnderstandanddefineservicesGoodservicedecompositionisthechallengeRemembercoarsegranularitySomeserviceimplementationswillexist,otherswillneedtobecreatedDetermineserviceinterfacesandinteractionpatternsWhatformatswillbeadoptedfordataexchange?Whatqualitiesofservicewillboundinteractions?Wherewillmediationberequired/appropriate?DefineserviceorchestrationsintermsofsupportedbusinessprocessesCompositeserviceswillgenerallyreflectbusinessprocesses?Whatarethebusinessprocesses?BusinessmodelsinWebSphereBIModelercanproveinvaluablehere,管理资源吧（），提供海量管理资料免费下载！,17,采用SOA的四个层次,管理资源吧（），提供海量管理资料免费下载！,18,实现单独的Web服务,管理资源吧（），提供海量管理资料免费下载！,19,面向服务的集成,管理资源吧（），提供海量管理资料免费下载！,20,企业范围内的IT转换,管理资源吧（），提供海量管理资料免费下载！,21,Enterpriseapplications,Enterprisedata,DataAccessServices,ApplicationAccessServices,IBMSoftwareOfferings,MonitoringServices,IBM商务整合的参考架构,Model,design,development,testtools,CommonRuntimeInfrastructure,WebSphereBIModeler,WebSphereBIMonitor,WebServicesGateway,WebSphereBIEvent/MessageBroker,WebSphereMQ,WebSphereBIAdapters,DB2InformationIntegratorClassic,WebSphereStudio,DB2InformationIntegrator,WebSphereBusinessIntegrationServer,WebSphereBusinessIntegrationConnect,WebSphereApplicationServer,EnterpriseServiceBus,ProcessServices,CommunityIntegrationServices,ApplicationServices,InformationServices,WebSpherePortalServer,UserInteractionServices,管理资源吧（），提供海量管理资料免费下载！,22,ProfessionalServices,OGSIOpenGridServicesInfrastructure,GridS