Model-Driven Evolution of Software Architectures - Software and ...

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112 Chapter6. ConformanceCheckingII thatsuchan Attachmentisonlyallowedifthecomponentinteractsusingthe portasinterfaceandaccordingtotheexpectationsdescribedbytheconnectorrole,thatis,portandroleneedtobecompatible[AllenandGarlan, 1994]. Allattachmentstogetherdeterminethe configurationofthe System. Notethatalthoughan Attachmentisarelation,wedefineitasa‘first-class’ modelelement(aViewPart)toallowmarkingitsconformanceinaCPADL model. Forseveralelementsweaddedspecialisationsforthespecificationof morespecificcommunicating-processesviews: OutputPort, InputPort, SinkRole, SourceRole, Process, SharedData,and Message. Finally,themodelelementsforwhichwewanttoestablishtheconformancearedefinedasspecialisationsofthegenericmetamodelelementsof Figure6.5ontheprecedingpage. 6.4.2 ModuleViews InordertoarriveatasystemfunctioningasdescribedbytheC&Cviews, viewsaredevelopeddrivingtheactualimplementationofsoftwareand hardware.Thoseviewsthatcapturethestructuralorganisationoftheimplementationunitsareknownasthesetofmoduleviewsandmainlyaddressthequestion:howisthesystemdeveloped?Theseviewsareusedto dividetheworkamongdevelopersanddevelopmentteams. Additionally, moduleviewscanbeusedtoassessnon-operationalqualitiesofasystem, suchasmodifiability.Figure6.3(b)onpage107displaysamoduleviewfor theDMBsystem.Itdepictsthedecompositionofthesoftwareimplementationunits(modules),theirusedependencies,andlayering.Modulesaresupposedlycoherentunitsoffunctionalitythatareeventuallyassignedtodevelopmentteams.Dependencyrelationsbetweenthe modulesofadevelopmentviewareimportant. Severaltypesofthemexists,suchasuses,allowed-to-use,andshares-data-withrelations.Here,we focusonusedependencies. ThecorrespondingconformancemetamodelisdepictedinFigure6.6(b). Here,an Implementationconsistsofasetof modulesand usesdependencies.A Modulehasasetof usesdependencies.InturnaUsesrelationisassociated withanother Module.Finally,aModuleconsistofasetof classes.Weadded theconceptof Classtosimplifythereconstructionofamodule-usesmodel fromsourcecode.Alternatively,wecouldhaveusedseparatemetamodels fortheresultoftheextractionstep(classesandcallsrelations)ontheone hand,andoftheabstractionstep(modulesandusesrelations)ontheother. Again,themodelelementsforwhichwewanttocheckconformanceare specialisationsofrelevantelementsfromFigure6.5onthepreviouspage. WerefertothelanguagedefinedbythismetamodelasMADL(ModuleADL).
6.4. ViewpointsandMetamodels 113 ViewPart (from Conformance) −name:String −conformance:Conformance SharedData + connectors Connector * Component Message Attachment Process + ports Role Port * + roles * + role attachment + + configuration * + attachment + port SourceRole SinkRole + calls * * System + components (a)CPADLmetamodel Implementation −name:String Module Uses + uses + uses * * + modules * + uses * + classes * Class + * fieldAccess * InputPort OutputPort ViewPart (from Conformance) −name:String −conformance:Conformance (b)MADLmetamodel Figure 6.6:Metamodels
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Model-DrivenEvolution ofSoftwareArc
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Ditproefschriftisgoedgekeurddoordep
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vi Preface Furthermore,Iwanttomenti
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viii Contents 2.4 Model-DrivenEvolu
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x Contents 7.5 SourceMetamodel. ...
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xii ListofFigures 5.7 Examplescenar
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xiv ABBREVIATIONS MDA ModelDrivenAr
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2 Chapter1. Introduction Figure 1.1
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4 Chapter1. Introduction evolutiono
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6 Chapter1. Introduction differenta
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8 Chapter1. Introduction definedona
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10 Chapter1. Introduction analysing
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12 Chapter1. Introduction Figure 1.
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14 Chapter1. Introduction Chapter3G
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Chapter2 Background Inthischapterwe
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2.1. SoftwareEvolution 19 ofmainten
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2.2. Architecture-DrivenSoftwareDev
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2.3. Model-DrivenEngineering 27 are
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2.3. Model-DrivenEngineering 29 sam
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2.3. Model-DrivenEngineering 31 met
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2.3. Model-DrivenEngineering 33 con
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2.3. Model-DrivenEngineering 35 1mo
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2.3. Model-DrivenEngineering 37 tin
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2.4. Model-DrivenEvolutionofSoftwar
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42 Chapter3. StateofthePractice toc
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44 Chapter3. StateofthePractice Tab
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46 Chapter3. StateofthePractice Fig
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48 Chapter3. StateofthePractice Req
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50 Chapter3. StateofthePractice but
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52 Chapter3. StateofthePractice IBM
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54 Chapter3. StateofthePractice pro
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56 Chapter3. StateofthePractice des
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58 Chapter4. Evaluation Onestrategy
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60 Chapter4. Evaluation Startingpoi
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Page 145 and 146: 7.1. Introduction 131 viewisitsprim
Page 147 and 148: 7.3. MigrationContext 133 requests
Page 149 and 150: 7.3. MigrationContext 135 waferhasb
Page 151 and 152: 7.4. Model-DrivenMigration 137 Sour
Page 153 and 154: 7.5. SourceMetamodel 139 0..1 0..1
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Page 161 and 162: 7.7. TargetMetamodel 147 tworesourc
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7.9. Evaluation 163 morecomplicated
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7.10. ConclusionsandFutureWork 165
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Chapter8 Visualisation of Domain-Sp
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8.2. Background 169 Inpractice,thee
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8.2. Background 171 Inpracticethear
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8.3. Model-DrivenArchitecturalViews
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8.4. UsingMDAVtoGenerateViews 175 S
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8.4. UsingMDAVtoGenerateViews 177 8
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8.4. UsingMDAVtoGenerateViews 179 .
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8.5. IndustrialApplication 181 rule
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8.5. IndustrialApplication 183 rule
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8.6. Discussion 185 8.6 Discussion
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8.8. ConcludingRemarks 187 Wherewep
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Chapter9 Conclusion Thegoalofthisth
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9.2. IntegrationinPractice(RQ1) 191
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9.3. SoftwareProductLines(RQ2) 193
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9.4. Model-DrivenEngineering(RQ3) 1
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9.4. Model-DrivenEngineering(RQ3) 1
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9.5. SupportforEvolutionofSoftwareA
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9.6. FutureWorkandRecommendations 2
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9.6. FutureWorkandRecommendations 2
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206 BIBLIOGRAPHY Bass,Len,PaulCleme
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208 BIBLIOGRAPHY Clements,PaulandLi
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210 BIBLIOGRAPHY Favre,Jean-Marie.
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212 BIBLIOGRAPHY Graaf,Bas,Hylkevan
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214 BIBLIOGRAPHY Klein, Mark H., Ri
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216 BIBLIOGRAPHY Proceedingsofthe6
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218 BIBLIOGRAPHY Shaw,Mary,RobertDe
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220 BIBLIOGRAPHY VanOmmering,Rob,Fr
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222 Summary ellingandtheimportanceo
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Samenvatting Tweebekendewettenindes
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Samenvatting 227 Inmeerderehoofdstu
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TitlesintheIPADissertationSeriessin
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L.Cruz-Filipe. ConstructiveReal Ana
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Sciences, Mathematics, andComputerS
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Processes. Faculty of Electrical En
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