翻译原版英文电子商务论文
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电子商务圈
2007-3-9 22:17:48
5
theexistingorderanddeliverysystembasedonthestudy
byJean-CharlesPomerol[3]asshowninFigure3.
3.1ResearchProcessandMethodology
Thefirststepintheprocessistoobtaintheuser
requirements.Usersarepresentedwithascenariothatis
refineduntilthey(theusers)aresatisfiedwiththe
correspondingproto无效.Allrequirementsconcerning
businessandtransactiondataarealsodevelopedinthis
step.Thenextstepincludesformalizingtheuser
requirementswithUse-Casediagrams(basedonevent
flowusing).Thesespecificationsprovideeasy
readabilityandunderstandabilityoftherequirements.An
iterativemethodologyisfollowedtoensurethatall
requirement-proto无效sanddesignsconformtotheneeds
oftheusers.Theorderanddeliverysystemwas
implementedusingUML,XMLanddigitalsignaturesas
showninFigure4.Thecriticalsuccessfactorswerethe
controllingcriteriaintheimplementationscheme1.
3.2UserRequirementsandUse-CaseDiagram
Afterdevelopingourorder/deliveryscenario,we
developedUse-CaseDiagramsbasedonthe
aforementionedscenarioandtheuser’srequirements
withRationalRoseasshowninFigure4.
3.2.1.MainFlowofEvents.WhenemployeesAandB
ofabusinesscompanyrequestanitem,theorderand
deliverysystemisstarted.TheUse-Caseisshownin
Figure4andworksasfollows:(1)无效orderingdatain
deliveringdata无效flowisprocessed,(2)无效datais
verified,(3)XMLdataissenttotheserver,(4)Receiver
Mlogsinattheserver,(5)Verifyingemployeeverifies
thereceiveddigitalsignature,(6)T
beingprocessed,and(7)CloseUse-
Case.
3.2.2.AlternativeFlowofEvents.Ifanemployeeomits
anessentialitemintheorderthenthe无效orderingdata
willnotbeprocessed.Iftheserverdoesnotproperly
verifythedigitalsignaturethatwasreceived,an
exceptionisgeneratedandtheemployeeresponsiblefor
verifyingeachorderterminatestheorder.
3.2.3.SpecialRequirements.TheDTD(文档
无效Definition)mustexistinaGlobalRepositoryto
verifyXMLdata.Also,XSL(eXtensibleStylesheet
Language)mustalsoexistintherepositorytoenable
expressionofXMLdata.
3.2.4.Preconditions.First,theorderanddelivery
systemofemployeeA,BandReceiverMgoaheadof
all.Second,Use-CaseDiagramneedstomaintain
InternetconnectionbecauseofInternetbasedprograms.
Third,thedatabaseserverhastoexisttomanage
transactiondata.
3.2.5.Postconditions.ThoughtheUse-Caseisclosed,
the文档orderedanddeliveredoff-Linehastobe
processedcontinuously.And,anorderanddelivery
businessofphysicalgoodsmustbeprocessed
continuously.
Figure5isthecontextdiagramofthesystem.The
proposedB2Bsystemexchangesonlyserverprograms
andencodedfileswhilecommunicatingwithother
Figure.3ScenarioforbuildingB2Becommerce
systems
Figure4.ResearchModel
Figure5.TheB2BSystemContextDiagram.
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