Web服務中的QoS模型研究.pdf

1、南京郵電大學碩士學位論文Web服務中的QoS模型研究姓名：陳祥云申請學位級別：碩士專業(yè)：計算機應用指導教師：楊庚201103南京郵電大學碩士研究生學位論文AbstractIIAbstractWebserviceisanewemergingIntertechnologywhichsupptscrossplatfmapplicationcrosslanguagedevelopmentserviceientedapplicationinteg

2、ration.AtpresentWebserviceshasalreadybecomeadominantframewkdesignfdistributedapplicationsingovernmentfinancetelecommunicationssecuritieseducationserviceindustryotherfields.AsawiderangeofapplicationsbasedonWebservicetechn

3、ologyisadoptedtherearealargenumberofWebServiceswiththesamesimilarfunctionappeared.DuetothelackofQoS(QualityofService)supptfcurrentWebServicestardstechnologieshowtothemostproperserviceswithabetterqualityservicelevelfromth

4、ecidateshasbecomeanurgentissue.BuildingaWebservicesQoSmodelistousemathematicalmodelingmethodtodescribeevaluateQoSlevelfWebserviceanalyzeservicerequestinfmationmakepredictiononthequalityofunusedservicesbasedonhisticalQoSd

5、atathusprovidingqualityofservicesupptfsearchingscreeningservicesinWebservicewk.BasedontheexistingWebservicesystemstructureindertoovercometheinsufficiencyindataprocessingftraditionalQoSmodelweproposeatrustWebserviceQoSeva

6、luationmodelwhichcombinesboththesubjectiveobjectiveinfluenceQoSfactstomakeacomprehensiverobustQoSevaluation.Themainwksofthispaperaredescribedasfollows.1.QoSrelatedtechnologytheanalysisabouttherestrictionfactofpopularityf

7、WebserviceisextensivelyintroducedfullexpressionofWebservicesQoSfactsismadequalityofserviceevaluationmodeladaptfWebserviceisclassifiedstudied.2.BasedonthesupptofagentbasedWebserviceframewkafurtherimprovementismadeonWebser

8、vicesystemstructureaflexibleefficientQoSinfmationcollectionmechanismisproposedthenewstructurecanupdatetheinitialpublishedQoSdatadynamicallyaccdingtothefeedbacksfromserviceconsumer3.AniginalQoSmodelcombiningbothsubjective

9、objectiveQoSfactsismadetorealizesupptQoSinWebservicewkwithoutmakinganychangesonexistingstardsimplementationtechnology.TheflexibleextensibleWebserviceQoSevaluationalgithmhasgoodsafetyhighefficiencyeffectivelyscreenbaleful