可靠Web服務組合的動態(tài)構建研究.pdf

1、東南大學碩士學位論文可靠Web服務組合的動態(tài)構建研究姓名：王偉鋒申請學位級別：碩士專業(yè)：計算機科學與技術；計算機應用技術指導教師：劉亞軍20110310東南人學碩。l：學位論文AbstractWebservicesasanewdistributedcomputingmodel，whichiSselfcontained，modularlooselycoupled；standardsbasedhighlyintegrable，etchasb

2、ecomeacommonindustrialandacademicfocusAtomicservicesusuallyoffersomesimplefunctions，theyCannotmeettheneedsofcomplexapplications；inordertoachieveacompletebusinessfunction，thedistributedatomicservicesneedtobecombinedaccord

3、ingtOcertainbusinesslogictoformanewmorepowerfulcompositeservice，whichmeetstheneedsofdifferentusersofcomplexapplicationsIntheWebenvironmentthereareusuallymorethanoneWebserviceswhichmeettheusers’functionalneeds，andtheservi

4、cesprobablyhavedifferentreliabili吼Inthemeantime，businesscompaniesalsohavesomepoliciesandrestrictionsinthedevelopmentofWebservicecompositionsolutionsSohowtoselecttheappropriateWebservicetobuildareliableWebservicecompositi

5、onwhichmeetstherequirementsandlimitationsiSakeyissueinthisfieldManyresearchershavedonealotofresearchabouttheoptimizationofWebservicecompositionissues，andsomeprogresseshavebeenmadeCurrentlyproposedefficientmethodstosolver

6、eliableWebservicecompositionproblemare：integerprogrammingandgeneticalgorithmButwiththerapiddevelopmentofWebservicesapplications，compositeservicestructuresbecomemorediverseanddynamic，andthesetwomethodseachCallnotefficient

7、lyhandlealltypesofservicecompositionstructureInthisthesis，wefocusonthestructureofWebservicecompositionitseif；analyzethestructuralparametersofWebservicecompositionandtherelationshipbetweentheexecutiontimeofalgorithmandthe

8、hestructuralparametersThenweproposeareliablecompositeWebservicemethodbasedonthecomplexityoftheexecution11他maincontributionsofthisthesisareshownasfellows：1AnalyzeofthestructuralcharacteristicsofW，ebservicescompositionlist

9、themainstructuralparametersofWebservicecomposition2ObtaintherelationshipbetweenthecompositeWebservicestructuralparametersandthealgorithmexecutiontimebyresearchandexperimentation3Proposetheconceptofalgorithmcomplexityfunc

10、tionandobtaintheexpressionofalgorithmscomplexfunctionthroughfittingtheexperimentaldata4ProposethemethodforreliableWebservicecompositionbasedonthecomplexityofexecutionanddesignaoverallsolutiontosolvethereliableWebservicec

11、ompositionAtthelastofthisthesisthesystemiSimplementedonthebasisoftheabovetheoreticalanalysisofwhichtheCOrealgorithmsanddatastructuresareintroducedindetailandanalyzedExperimentsandstudieshaveshownthattheproposedmethodforr