An accessible verification environment for UML models of services.docx

An accessible verification environment for UML models of services.docx

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AnaccessibleverificationenvironmentforUMLmodelsofservices

Agent-basedplatformtosupporttheexecutionofparalleltasks  OriginalResearchArticle

ExpertSystemswithApplications,Volume38,Issue6,June2011,Pages6644-6656

DavidSánchez,DavidIsern,ÁngelRodríguez-Rozas,AntonioMoreno

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AbstractAbstract|Figures/TablesFigures/Tables|ReferencesReferences

Abstract

Parallelcomputinghasbeenradicallyevolvingintherecentyearsfromthesupercomputermulti-processorcentralisedpointofviewtothemoderndistributedapproachessuchasgridcomputing.TheavailabilityofrelativelyobsoleteorunderusedhardwareandtheincreasingLANandWANinterconnectionspeedhavemotivatedthesuccessofthosenewparadigms.Inthispaper,weproposetheuseofagenttechnologytoimprovethemanagement,flexibilityandreusabilityofgrid-likeparallelcomputingarchitectures.Wepresentageneralpurposeagent-basedarchitecturewhichisabletomanageandexecuteindependentparalleltasksthroughoneorseveralheterogeneouscomputernetworks–orevenInternetnodes–exploitingstateoftheartagentmobilitycapabilities.Aparticularapplicationoftheproposedarchitecturetosupporttheexecutionofacomplexknowledgeacquisitiontaskisalsointroduced,showingahighscalabilityandaverylowoverhead.

ArticleOutline

1.Introduction

2.Distributedagentplatform

2.1.Platformtopology

2.2.Platformcomponents

2.2.1.Maincontainercomponents

2.2.2.Serverservices

2.2.3.Nodecontainercomponents

2.2.4.Mobileagents

2.3.Genericcomponents

2.4.Platformmanagementandtaskexecution

2.5.Eventmanagementandfailrecovery

3.Evaluationofoverheadsandscalability

3.1.Memoryoverhead

3.2.CPUoverhead

3.3.Parallelexecutionthroughputevaluation

4.Caseofstudy:

knowledgeacquisitionfromtheWeb

4.1.DomainontologylearningfromtheWeb

4.2.Taskmodelling

4.3.Parallelexecutionperformance

5.Relatedwork

6.Conclusions

Acknowledgements

References

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Researchhighlights

►Wepresentanagent-basedarchitecturetoexecuteparalleltasksinheterogeneousnetworks.►Itexploitsstateoftheartagentmobilitycapabilitieseasingtaskmanagement.►Agentsprovideahighlevelofflexibilityintroducingaminimumoverhead.►Theplatformhasbeenappliedtoexecuteacomplexknowledgeacquisitiontask.►Itsthroughputscaleslinearlywithregardstotheavailableresources.

106

Process/equipmentco-simulationfordesignandanalysisofadvancedenergysystems  OriginalResearchArticle

Computers&ChemicalEngineering,Volume34,Issue9,7September2010,Pages1532-1542

StephenE.Zitney

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Abstract

Thegrandchallengefacingthepowerandenergyindustriesisthedevelopmentofefficient,environmentallyfriendly,andaffordabletechnologiesfornext-generationenergysystems.Toprovidesolutionsforenergyandtheenvironment,theU.S.DepartmentofEnergy's（DOE）NationalEnergyTechnologyLaboratory（NETL）anditsresearchpartnersinindustryandacademiaarerelyingincreasinglyontheuseofsophisticatedcomputer-aidedprocessdesignandoptimizationtools.Inthispaper,wedescriberecentprogresstowarddevelopinganAdvancedProcessEngineeringCo-Simulator（APECS）forthehigh-fidelitydesign,analysis,andoptimizationofenergyplants.TheAPECSsoftwaresystemcombinessteady-stateprocesssimulationwithmultiphysics-basedequipmentsimulations,suchasthosebasedoncomputationalfluiddynamics（CFD）.Theseco-simulationcapabilitiesenabledesignengineerstooptimizeoverallprocessperformancewithrespecttocomplexthermalandfluidflowphenomenaarisinginkeyplantequipmentitems,suchascombustors,gasifiers,turbines,andcarboncapturedevices.InthispaperwereviewseveralapplicationsoftheAPECSco-simulationtechnologytoadvancedenergysystems,includingcoal-firedenergyplantswithcarboncapture.Thispaperalsodiscussesongoingco-simulationR&DactivitiesandchallengesinareassuchasCFD-basedreduced-ordermodeling,knowledgemanagement,advancedanalysisandoptimization,andvirtualplantco-simulation.Continuedprogressinco-simulationtechnology–throughimprovedintegration,solution,anddeployment–willhaveprofoundpositiveimpactsonthedesignandoptimizationofhigh-efficiency,near-zeroemissionfossilenergysystems.

ArticleOutline

1.Introduction

2.AdvancedProcessEngineeringCo-Simulator

3.APECSapplications

4.Conclusions

Acknowledgements

References

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107

TheuseofinformationsystemsintheGreekpublicfinancialservices:

ThecaseofTAXIS  OriginalResearchArticle

GovernmentInformationQuarterly,Volume26,Issue3,July2009,Pages468-476

MarianthiH.Terpsiadou,AnastasiosA.Economides

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Abstract

Oneofthemostimportanttransactionsbetweengovernmentandcitizensistaxation.Themodernizationeffortsofthepublicsectorusinginformationandcommunicationtechnology（ΙCT）haveledtotheapplicationoflargeinformationsystems.TAXIS（TAXInformationSystem）isamajorinformationsystemintheGreekpublicfinancialsector.ItsupportstheInlandRevenueServices'employeestoservethecitizensandthestate.ThisstudyinvestigatedtheTAXISusageanditsevaluationbythetaxofficeemployees.Anappropriatequestionnairewasdevelopedanddistributedtotaxofficeemployeesinthreebranches.Theanalysisofonehundredresponsesrevealedusefulresultsforgovernmentalpolicymakers,taxofficialsaswellaspublicinformationsystemdevelopers.MostresponderswerepleasedwithTAXIS'characteristicsexceptofthehandbooks'effectivenessandthesystem'sspeed.Genderdifferenceswerelocatedintheirdailyusage,problems'awareness,feelingsandconsiderationsaboutthesecurityofTAXIS.

ArticleOutline

1.Introduction

2.Previousstudies

3.TAXISoverview

4.Researchmethod

5.Resultsanddiscussion

6.Genderdifferencesintheemployees'responses

6.1.GenderdifferencesinTAXISusage

6.2.GenderdifferencesinevaluatingTAXIScharacteristics

7.Open-endedquestionresults

8.Conclusionsandfutureresearch

References

Vitae

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108

Digitalcirclesofsupport:

Meetingtheinformationneedsofolderpeople  OriginalResearchArticle

ComputersinHumanBehavior,Volume25,Issue3,May2009,Pages633-642

MaryGodfrey,OwenJohnson

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Abstract

TheUKGovernmentstrategyforaginginthe21stCenturychallengesconceptionsofolderpeopleaspassiverecipientsofcareandpromotestheirengagementasactivecitizens.Thestrategyincludesacommitmenttotestserviceswhichembodytheseprincipleswitharangeofinnovativepilotprojects.Thispapersummarisesresearchonolderpeople’sinformationneedsandusewhichinformedthedesignforoneoftheseprojects,LeedsLink-AgePlus.Theresearchexploredthecomplexcircumstancesaroundwhicholderpeopleaccessandusesocialandcommunityinformation–atopicthathasreceivedlimitedattentionintheliterature.Thepaperisnovelinconsideringhowtheuseofinformalnetworksforsecuringinformation,adviceandadvocacycanbesupportedbytechnologyliteratemediators,whomaybeolderpeople,locatedwithinlocalcommunityorvoluntaryorganisations.Emphasisingthemediatorindesignfacilitatessocialcontacts,directlyaddressesissuesoftrustandcanreducethechanceofcausingdistressdealingwithcomplexinformation.Amodelissuggestedforusingemergingtechnologytointroducenewwaysinwhichinformationforolderadultscanbeimprovedbydigital‘circlesofsupport’–aformofsocialnetworkwheremediatorscollaboratetocreateandshareself-authoredcontent.

ArticleOutline

1.Introduction

2.Design

3.Methods

4.ScopingReview

5.Reviewfindings:

meaning,contextandaccessinginformation

6.Themeaningof‘information’

7.Contextsinwhichinformationissought

7.1.Lifecoursetransitions

7.2.Lifeevents

7.3.Dailyhassles

8.Accessing‘circlesofsupport’

9.Conclusionsfordesign:

meaning,contextandaccess

10.Barriersandopportunitiestoaccessanduseofinformationbyolderpeople

11.Thedigitaldivideinolderage

12.Overcomingtheagerelateddigitaldivide

13.ConclusionsforDesign:

DevelopingtheInformationStoreModel

14.OpportunitiesforInnovativeDesign

15.Web-basedportals

16.Socialnetworkingsites

17.Thematuritymatrix:

exploringopportunitiesforinnovation

18.ImplementationandFutureDirection

19.TowardsDigitalCirclesofSupport

20.Conclusion

References

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109

TakingadvantageoftheMobicentsplatforminthedesignoftheSINGAenvironment  OriginalResearchArticle

ProcediaComputerScience,Volume3,2011,Pages638-648

NomusaDlodlo,JPTolmay

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AbstractAbstract|ReferencesReferences

Abstract

Thispaperdescribesanarchitecturethatwasdesignedtoenableaccesstothescenarios/challengesontheSINGAplatform.SINGAisavirtualplatformthatenableschildrenfacingbarriersofaccesstoinformation,servicesandpeopletolearnthewaysandmeanstoacquirethes