信息门户架构.docx

信息门户架构.docx

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信息门户架构

Aservice-orientedcityportalframeworkandcollaborativedevelopmentplatform

InformationSciences信息科学学报

基于服务的城市SOA框架及其协同化的开发平台

Citiesarebeingequippedwithmultipleinformationsystemstoprovidepublicservicesforcityofficials,officers,citizens,andtourists.Therehavebeenconcernswithefficientserviceimplementationandprovision,e.g.,dataislandsandfunctionoverlapsbetweensystemsandapplications.Service-orientedportalsareefficientatfacilitatinginformationsharingandcollaborativeworkbetweencitysystemsandusers.Thegoalofthisresearchistomakecitiesresponsive,agileandtoprovidecompositeservicesefficientlyandcostefficiently.Aservice-orientedframeworkforcityportalsisproposedtodesign,integrateandstreamlinecitysystemsandapplications.Amodeldrivencollaborativedevelopmentplatformoftheproposedframeworkwasdevelopedforservice-orienteddigitalportals.Thearchitectureandimplementationissuesoftheplatformarediscussed.Theserviceidentificationpoliciesarediscussedwithintheframework.Acasestudyhasbeendevelopedandevaluatedontheplatformtoprovideacompositeservice,i.e.,atrafficsearchserviceonacityportal.

ArticleOutline

1.Introduction

2.Challengesandrelatedwork

3.Requirementsforacityportal

3.1.Objectivesofacityportal

3.2.Servicesprovidedbyacityportal

3.3.Schemeofacityportal

3.4.Functionalrequirements

3.5.Service-orientedsystemfeatures

4.Aservice-orientedcityportalframework

4.1.Service-orientedarchitectureoftheportal

4.2.Collaboration-orientedserviceidentification

4.3.Userinteractionmodelofaportal

4.4.Servicesandprocessesimplementation

5.Collaborativedevelopmentplatformforcityportals

5.1.AcollaborativeSOAdevelopmentplatform

5.2.Thecustomizationfordevelopmentofcityportalframework

5.3.Benefitofthecollaborativedevelopmentplatformforthecityportal

6.Casestudyandevaluation

7.Conclusions

Determinantsofuseracceptanceofthee-Governmentservices:

Thecaseofonlinetaxfilingandpaymentsystem  

在线缴税和发放工资系统设计

GovernmentInformationQuarterly,

Thispaperidentifiesthefactorsthatdeterminethepublics'acceptanceofe-Governmentservices.Theonlinetaxfilingandpaymentsystem（OTFPS）isawell-knowne-GovernmentserviceinTaiwan.Usingatheoreticalmodelbasedonthetheoryofplannedbehavior,thisstudyaimsto

（1）identifythedeterminantsforacceptanceoftheOTFPS;

（2）examinethecausalrelationshipsamongthevariablesofacceptancebehaviorfortheOTFPS;and（3）exploretherelativeimportanceofeachdeterminantforboththosewhousetheOTFPSandthosewhodonot.Thearticlereportsonasurveythatcollected1,099usableresponses.Theresultsindicatethattheproposedmodelexplainedupto72percentofthevarianceinbehavioralintention.Inaddition,theimportantdeterminantsofuseracceptanceoftheOTFPSareperceivedusefulness,easeofuse,perceivedrisk,trust,compatibility,externalinfluences,interpersonalinfluence,self-efficacy,andfacilitatingcondition.Finally,theacademicandpracticalimplicationsofthesefindingsarediscussed.

ArticleOutline

1.Introduction

2.Literaturereview

2.1.Electronicgovernmentandrelatedstudies

2.2.e-GovernmentapplicationsinTaiwanandonlinetaxfilingandpaymentsystem

2.3.Theoryofplannedbehavior

3.Researchmodelandhypotheses

4.Researchmethod

4.1.Instrumentdevelopmentandpre-test

4.2.Datacollectionandsamplerepresentativeness

4.3.Statisticalanalysis

5.Resultsanddiscussions

5.1.Users'profileoftheOTFPS

5.2.RelationshipsamongtheexternalvariablesandTPB-relatedvariables

5.2.1.Measurementmodelresults

5.2.2.Structuralmodelresults

5.3.Relativeimportanceofeachinfluenceone-Governmentservicesacceptanceforusersofe-Government

6.Conclusionandimplications

FurtherReading

AppendixA.TheQuestionnaire

ADelphi-basedroughsetsfusionmodelforextractingpaymentrulesofvehiclelicensetaxinthegovernmentsector 

ExpertSystemswithApplications

Itisaproblematicissuefacedbythegovernmentsectortoeffectivelydiscoverpotentiallyowedtaxes（overduepayments）andcontinuallypromotetheprincipleoftaxationjustices.However,duetothehigheconomicdevelopmentoverthepast30 yearsinTaiwan,thequantityofvehiclesrecordedcontingentwiththemoundsofdatageneratedandcollectedintheTaxBureauisgrowingatafastrateconcurrently;therefore,themission-criticalnatureofthedataandthespeedwithwhichanalysesneedtobemadenowincreasetherequirementsforamorereliablewaytodigoutagovernment’staxationinformationhidden.Basedonthereasonsabove,thisstudyproposesahybridmodel,whichcombinestheDelphimethodandroughsetsclassifierapproaches,forintelligentlyclassifyingthevehiclelicensetaxpayment（calledVLTP）tosolvereal-worldproblemsthatarefacedbytaxationagencies.Theproposedhybridmodelisillustratedbyexaminingapracticallycollecteddataset,andtheexperimentalresultsrevealthatthishybridmodeloutperformsthelistingmethodsintermsofaccuracyanditsstandarddeviation.Moreimportantly,theoutputcreatedbyroughsetsLEM2（LearningfromExamplesModule,version2）algorithmisasetofcomprehensibleandmeaningfulrulesappliedreadilyinknowledge-basedsystemsofpaymentclassificationofvehiclelicensetaxfortaxauthority.

ArticleOutline

1.Introduction

2.Relatedworks

2.1.Thedescriptionsofvehiclelicensetax

2.2.Delphimethod

2.3.RoughsettheoryandtheLEM2ruleextractionmethod

2.4.DecisiontreesC4.5

2.5.Artificialneuralnetworks–Multilayerperceptron

2.6.Naivebayes

3.Theproposedhybridmodel

4.Verificationandcomparison

4.1.TheintroductionofGovernment-A

4.2.ThecomputingprocessesusingVLTdataset

4.3.Analysisresultsandimplications

5.Discussionandfindings

6.Conclusions

Aservice-orientedtravelportalandengineeringplatform 

Aservice-orientedtravelportalisproposedtorealizeaclassicbusinessmodelwithSOAparadigm.Itprovidestouristswithcompositetravelpackagesthroughdynamiccompositionamongtravel-relatedservicesfromdistributedprovidersandacrossbusinessdomains.Further,adevotedservice-orientedengineeringplatform（SOEP）isreengineeredandcustomizedfortravelportalsbasedonauthors’previousworkandatravelportalproject’susescenario.Theplatformisdrivenbyfourmodels:

servicemeta-model,processmodel,businessmodelandglobalinformationmodel.Thesemodelssupportsemanticdescriptionandrationaloperationsoftheapplication,andfacilitatetravelservicediscovery,processexecutionandbusinesstobusinessintegration.ThetravelportalprovidesarealSOAapplicationandwell-definedbusinessandservicecasestoimprovetheplatform.TheSOEPprovidesaprofessionalimplementationenvironmentforservice-orientedtravelportals,anditcouldbecustomizedfortheservice-orientedsystemsofotherindustriesusingasimilarframeworkandapproachestothosepresentedinthisarticle.

ArticleOutline

1.Introduction

2.Backgroundandrelatedwork

3.Service-orientedtravelportal

3.1.Motivation

3.2.Technicalarchitectureoftheportal

3.3.Functionalrequirementsoftheportal

3.4.Travelallianceandserviceproviders

3.5.Servicediscoverywithtravelontology

4.Service-orientedengineeringplatformfortravelportals

4.1.Aservice-orientedengineeringplatform

4.2.Modellingviewsoftheplatform

4.3.Consistencybetweenthemodellingviews

4.4.Modellingtoolswiththemodelingviews

5.Evaluationofthetravelportalanditsengineeringplatform

6.Conclusions

旅游门户网站及其工程实现

Organizinginformationintegrationinagri-food—Amethodbasedonaservice-orientedarchitectureandlivinglabapproach 

ComputersandElectronicsinAgriculture

Agri-foodenterprisesoperateinacomplexanddynamicenvironment.Tomeetincreasingdemandsofconsumers,governmentandbusinesspartners,enterprisescontinuouslyhavetoworkoninnovationsofproducts,processesandwaysofcooperationinagri-foodsupplychainnetworks（AFSCN）.Hence,adevelopmenttowardsamoreknowledge-basedeconomyisneeded.TheLisbonstrategy,launchedbytheEuropeanUnion,toattainthisknowledge-basedeconomy,hasfailedsofar.ThispaperarguesthatinformationsharingandorganizingICTaremaincriticalareastoovercomethisdeadlock.However,ICTdevelopmentinAFSCNinvolvesaninformationintegrationtaskthathastodealwithtechnicalandorganizationalrequirementsandstartswithanexistinginstalledbase.Traditionalsoftwareengineeringapproachesareinadequatetoaddresstheseissues.Thispaperprovidesanoverallmethodforanalysis,designandimplementationofinformationintegration,takingtechnicalaswellasorganizationaldevelopmentintoaccount.ThemethodwasderivedfromexperiencesinaresearchanddevelopmentprogramintheDutcharablefarmingsector.AgenericintegrationframeworkformsthebackboneofthemethodtoensuresystematicandsustainableICTdevelopment.Businessprocessmanagement（BPM）,incombinationwithreferenceinformationmodels,playsanimportantrole.Thetechnicalarchitectureandinfrastructurearebasedonaservice-orientedarchitecture（SOA）.Attentionispaidtotheorganizationalinfrastructurethatisneededtoembedtheresultsintherightcontext,sothattheywillbebroadlysupportedandused.Themethodisdividedintothreephases:

analysis,basicdesignanditerativeimplementation.AnalysisofthecurrentsituationinAFSCNissupportedbyaninformationintegrationframework.Thebasicdesignisafirstversionofthegenericintegrationframework.Intheiter