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AssociationforInformationSystemsAISElectronicLibrary(AISeL)ICIS2009ProceedingsInternationalConferenceonInformationSystems(ICIS)1-1-2009UnderstandingITInnovationsThroughComputationalAnalysisofDiscourseChia-jungTsuiUniversityofMaryland-CollegePark,ctsui@umd.
eduPingWangUniversityofMaryland-CollegePark,pwang@umd.
eduKennethR.
FleischmannUniversityofMaryland-CollegePark,kfleisch@umd.
eduDouglasW.
OardUniversityofMaryland-CollegePark,oard@umd.
eduAsadB.
SayeedUniversityofMaryland-CollegePark,asayeed@umd.
eduThismaterialisbroughttoyoubytheInternationalConferenceonInformationSystems(ICIS)atAISElectronicLibrary(AISeL).
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RecommendedCitationTsui,Chia-jung;Wang,Ping;Fleischmann,KennethR.
;Oard,DouglasW.
;andSayeed,AsadB.
,"UnderstandingITInnovationsThroughComputationalAnalysisofDiscourse"(2009).
ICIS2009Proceedings.
Paper102.
http://aisel.
aisnet.
org/icis2009/102ThirtiethInternationalConferenceonInformationSystems,Phoenix20091UNDERSTANDINGITINNOVATIONSTHROUGHCOMPUTATIONALANALYSISOFDISCOURSEResearch-in-ProgressChia-jungTsui,PingWang,KennethR.
Fleischmann,DouglasW.
Oard,andAsadB.
SayeedUniversityofMarylandCollegePark,MD20742{ctsui,pwang,kfleisch,oard,asayeed}@umd.
eduAbstractHowdoInformationTechnology(IT)innovationconceptsemerge,coexist,evolve,andrelatetoeachotherToaddressthisquestion,wetheorizethatinnovationconceptsareinterrelatedinanideanetwork,wheretheycanbelikenedtospeciesinacompetitiveandsymbioticresourcespace.
Communitiesoforganizationsandpeopleinterestedintheinnovationsproducediscoursethatbothreflectsandenablestheflowsofattentionamonginnovations.
Fromthisecologicalperspective,weapplydiscourseanalysistoinnovationresearchandproposecomputationalapproachtoscaleuptheanalysis.
Specifically,weemployedKullback-Leiblerdivergencetocomparethelinguisticpatternsof48ITinnovationsreportedinInformationWeekandComputerworldoveradecade.
Usingmultidimensionalscaling,wefoundthatsimilarinnovationsdemonstratedsimilardiscourses.
Theresultsdemonstratethevalidity,scalability,andutilityofcomputationaldiscourseanalysisforpractitionersandscholarstounderstandthesocio-technicaldynamicsintheITinnovationecosystem.
Keywords:Informationtechnologyinnovation,innovationconcept,discourse,computationalanalysis,Kullback-Leibler(KL)divergence,multidimensionalscalingGeneralTopics2ThirtiethInternationalConferenceonInformationSystems,Phoenix2009IntroductionOracle'srecenttakeoverofSunMicrosystemsandHP'sacquisitionofEDSearliersignifiesanimportantindustrytrend:Ontheonehand,thecurrenteconomiccrisisandtherelentlessdriveforgrowthpressureITvendorstoexpandanddiversifytheirofferingsbymergersandacquisitions.
Ontheotherhand,enterprisecustomersincreasinglypreferone-stopshoppingofintegratedinformationsystemswithouttheneedforcomplicatedplumbingin-house(TheEconomist2009).
DespitethetrendtowardconsolidationandintegrationinthemarketplaceforITproductsandservices,themarketplaceforideasthatunderlieITproductandserviceinnovationsremainmessyandfragmented(LyytinenandKing2004;PfefferandSutton2006;Wang2009).
Withminimalcost,anyonecanentertheideamarketplacewithaseeminglyinnovativeconcept.
Atanytime,numerousITconceptsarecompetingforthealreadythinattentionofpractitionersandscholars.
Whattheconceptsmeanandproposeisofteninconsistentandambiguous.
Thusfar,researchonITinnovationshasprimarilysoughttounderstandthesocialandtechnicaldynamicsintheITproduct/servicemarketplace(Fichman2004).
OurunderstandingoftheideamarketplaceforITinnovationsisstillinadequateaswefacethornyquestionsoftheoreticalandpracticalsignificance.
Ontoday'ssceneofITinnovations,Web2.
0andrelatedconceptsareintheprocessofyieldingthelimelighttoCloudComputing.
AsITinnovationsebbandflowconstantly,whatarethecurrentinnovationconceptsinthemarketplaceandwhatisemergingTheabilitytomonitorexistingandemerginginnovationsandtobemindfuloftheirimplicationsforspecificorganizationsisacriticalmanagerialcapability(SwansonandRamiller2004).
Alongwiththeemergenceofalmosteverynewconceptcomesthequestion:IsthisreallyneworjustoldwineinanewbottleForexample,isCloudComputingabrandnewideaorsimplyUtilityComputingrepackagedSuchsense-makingisnotonlylimitedtothecomparisonofthenewwiththeold,butalsonecessaryforunderstandingthecomplexrelationshipsamongconceptscoexistinginanideanetwork.
Forinstance,whatisthedifferencebetweenWebServicesandSoftwareasaService(SaaS)WhatistherelationshipbetweenvirtualizationandService-OrientedArchitecture(SOA)Asinnovationconceptsprogressthroughtheirdifferentiatedtrajectories,howdotheyevolveandwhatdoestheirevolutionmeantotheorganizationsandpeopleassociatedwiththeseinnovationsForinstance,doestheCustomerRelationshipManagement(CRM)conceptmeanthesamethingtodaythatCRMmeantadecadeagoDependingontheanswertothisquestion,avendormaychoosetocontinuepromotingitsofferingsundertheCRMbannerorswitchtoanewlabelorcategorythatcorrespondsmorewithitscurrentemphasisandcustomerpreferences.
Asaninnovationconceptevolves,howdoesthecommunityofpeopleandorganizationsassociatedwiththeinnovationevolveForexample,hasthediversecommunityforWeb2.
0becomefragmentedorcoherentinthecurrenteconomicmeltdownHavethediverseopinionsonWeb2.
0inthecommunitybeenconvergingordivergingWhatdoestheco-evolutionoftheinnovationanditscommunityimplyforthefateoftheinnovationThelackofknowledgeabouthowITinnovationconceptsemerge,coexist,co-evolve,andrelatetoeachotherisinpartcausedbytheoreticalandmethodologicallimitations.
Theoretically,thefocusofITinnovationresearchontheproduct/serviceformofinnovationshasthusfarprovidedonlyamodestnumberofinsightsforunderstandinginnovationsasconcepts.
Methodologically,mostinnovationstudiesweredesignedtoexamineonlyoneorafewinnovations,owingtothedifficultyinanalyzinglarge-scaledataonmultipleinnovations(StrangandSoule1998).
Thepresentstudyseekstoaddresstheselimitationsbyoffering(1)atheoreticalfoundationbuiltuponanecologicalviewofinnovationsand(2)ananalyticalmethodologyenabledbycomputationalanalysisofdiscourse.
Inwhatfollows,afterlayingthetheoreticalfoundation,weillustrateourmethodologywithanempiricalstudyof48ITinnovationsoveraten-yearperiod.
WeconcludebydiscussingtheutilityofourapproachforITinnovationresearchandpractice.
AnEcologicalViewofITInnovationConceptsInnovationconceptsarerelatedtooneanotherinmanyways.
First,abroaderconceptmaybecomprisedofnarrower,morespecificconcepts.
Second,differentconceptsmayrepresentthesamecoreidea.
Third,conceptsmaycompetewitheachotherasalternativesolutionstosimilarproblemsorfortheattentionfromthesamegroupofpeopleororganizations.
Finally,conceptsmaycomplementeachothertoaccomplishcommontasks.
Asinnovationsareinterrelated,theirevolutionarytrajectories(asindicatedbypopularityorperformanceforinstance)areinterrelatedtoo.
Itmaybehelpfultoconceptualizeanetworkofinnovationsaspartofanecologicalsystem,whereinnovationscanbelikenedtospeciesinacompetitiveandsymbioticresourcespace(Wang2009;WhittakerTsuietal.
/UnderstandingITInnovationsthroughComputationalAnalysisofDiscourseThirtiethInternationalConferenceonInformationSystems,Phoenix20093andLevin1975).
Innovationsrelyontheattentionfromcommunitiesoforganizationsandpeoplewithinterestsinproducingand/orusingtheinnovations.
Eachcommunityemergestomakesenseofaninnovationandorchestratematerialactivities.
Themembershipofthecommunityevolvesdynamically,asthecollectiveattentiontotheinnovationevolves.
Theflowsofattentionamonginnovationsarebothreflectedandenabledbydiscourse–whathavebeensaidandwrittenabouttheinnovations.
Whilethediscourseaboutaninnovationsometimesmanifestshumanactionsundertakenonbehalfoftheinnovation,oftenthediscourseitselfisaformofhumanaction,e.
g.
,tomakesenseof,promote,ordenouncetheinnovation(PhillipsandHardy2002).
Therefore,analysisofdiscourseaboutmultipleinnovationscanhelpusunderstandtheemergenceandevolutionofinnovationsandtheirrelationships.
Methodology:ComputationalAnalysisofDiscourseDiscourseanalysisofinnovationconceptspresentlyfacesamethodologicalchallenge:Discoursedataareoftenvoluminousandverylabor-intensivetocollectandanalyze.
Extantdiscoursestudiesofinnovationconceptshavetotradeoffbetweencasestudiesusingin-depthdataandlarge-scaleanalysisusingthinobservations(e.
g.
,citations).
Recentadvancesincomputationalanalysisofdiscoursehavemadeitpossibletoachievebothdepthandbreadthindiscourseanalysis.
Computationalorautomatedanalysisofdiscourseisalarge,activeinterdisciplinaryfieldwithavarietyoftheoriesandtechniques(seeOard2008foranon-technicalprimer).
Todemonstratetheutilityofcomputationaldiscourseanalysis,wehavechosenonetechniquesuitableforourinterestintheemergence,coexistence,co-evolution,andrelationshipsofinnovationconcepts.
Thistechnique,calledKullback-Leibler(KL)divergence(KullbackandLeibler1951),isessentiallyameasurethatquantifieshowcloseaprobabilitydistributionistoanotherdistribution.
ForprobabilitydistributionsPandQofadiscreterandomvariable,theKLdivergenceofQfromPisdefinedaslog(DPQPiPiQiKLi∑=.
KLdivergenceiscommonlyusedforcomparingtherelativefrequencyoftermuseinpairsofdiscourses(ManningandSchütze1999).
Beforewedetailouruseofthistechniqueinthisillustrativeempiricalstudy,weneedtodescribethediscoursedatawehavecollected.
DataCollectionTherearenumerousdiscourseoutlets,includingbooks,magazines,conferences,blogs,wikis,andmanyothers.
Specifically,wedownloadedallofthearticlespublishedduringaten-yearperiod(1998-2007)inInformationWeek,anITtrademagazine,usingtheLexis/Nexisonlinedatabase.
InformationWeekwasusedasanexemplaroutletoftheITinnovationdiscourse.
Meanwhile,wecompiledalistof48ITinnovationconcepts(Table1),rangingfromenterprisesoftware(e.
g.
,CRM)topersonalgadgets(e.
g.
,iPod),fromabstractconcept(e.
g.
,ArtificialIntelligence)toconcreteproducts/services(e.
g.
,YouTube),andfromhighlypopular(e.
g.
,e-business)tolesswell-knownconcepts(e.
g.
,digitalsubscriberline–DSL).
ThislistillustratesabroadrangeofITinnovationconceptsintheexaminationperiod.
WethenextractedfromtheInformationWeekarticlesalltheparagraphscontaininganyofITinnovationsonthelist.
Indoingso,weconsideredpossiblelabelsforeachinnovation,pluralforms,andacronymsuniquetotheinnovation.
Forexample,inextractingparagraphscontaining"digitalsubscriberline,"wealsoincludedparagraphsmentioning"digitalsubscriberlines"and"DSL.
"SomeITinnovationshadmanyparagraphsinthe10-yearperiodwhileothershaveonlyafew.
Forexample,thereweremorethan5,000paragraphsmentioningEnterpriseResourcePlanning(ERP).
Intotal,71,113paragraphswereextracted,withabout1,500paragraphsonaverageforeachinnovation.
DataAnalysisInthisdataset,eachinnovationisrepresentedbytheparagraphsmentioningtheinnovation.
TheuseoflanguageintheparagraphsconstitutesaprobabilitydistributionoverwordsandwecalculatedtheKLdivergenceforeachpairofinnovations.
Thecalculationgeneratesanasymmetric48x48matrixwitheachcolumnandrowrepresentingoneofthe48innovations.
Aftersymmetrization(byaveragingtheKLdivergenceineachdirection),thevalueineachcellofthematrixcanbeconsideredasthedistancebetweenapairofinnovations.
Inordertovisualizethedistancebetweeninnovations,weappliedmultidimensionalscaling(MDS)tothesymmetrizedKLdivergencematrix.
MDSisasetofstatisticaltechniquesforinformationvisualization.
Baseduponamatrixofitem-itemsimilaritiesordissimilarities,anMDSalgorithmassignsalocationtoeachiteminaGeneralTopics4ThirtiethInternationalConferenceonInformationSystems,Phoenix2009spacesuchthatthedistancesbetweentheitemscorrespondascloselyaspossibletothemeasureddissimilaritiesbetweentheitems.
Inotherwords,theproximityofitemstoeachotherinthespaceindicateshowsimilartheyare.
InMDS,onecanchoosethenumberofdimensionss/hewantsthealgorithmtocreate.
Generally,themoredimensions,thebetterthestatisticalfit,butthemoredifficultitistointerprettheresults.
Table1.
ListofInformationTechnologyInnovationConceptsAIArtificialIntelligenceMultimediaMultimediaASPApplicationserviceproviderMP3MP3playerATMAutomatedTellerMachineMySpaceMySpaceBIBusinessintelligenceOLAPOnlineAnalyticalProcessingBlogBlogOSSOpenSourceSoftwareBluetoothBluetoothOutsourceOutsourcingCADComputerAidedDesignPDAPersonalDigitalAssistantCRMCustomerRelationshipManagementRFIDRadioFrequencyIdentificationDigiCamDigitalCameraSmartCardSmartCardDLearnDistanceLearningSCMSupplyChainManagementDSLDigitalSubscriberLineSFASalesForceAutomationDWDataWarehouseSocNetSocialNetworkingeBizeBusinessSOAService-OrientedArchitectureeComeCommerceTelecommuteTelecommutingEDIElectronicDataInterchangeTabletPCTabletPCEgove-GovernmentUtiCompUtilityComputingERPEnterpriseResourcePlanningVirtualizationVirtualizationGPSGlobalPositioningSystemVPNVirtualPrivateNetworkGrpwareGroupwareWeb2.
0Web2.
0IMInstantMessagingWebServWebServicesiPhoneiPhoneWiFiWi-FiiPodiPodWikiWikiKMKnowledgeManagementWikipediaWikipediaLinuxLinuxYouTubeYouTubeMDSisadvantageousoverotherdimension-reductiontechniquessuchasfactoranalysisbecauseMDScanfitanappropriatemodelinfewerdimensionsthanothertechniques(Wilkinson1986).
Inaddition,amatrixofsymmetrizedKLdivergencemeasuresisappropriateinputforMDSbutnotforfactoranalysis.
Further,MDSallowsresearcherstogaininsightsintotheunderlyingstructureofrelationsbetweenitemsbyprovidingageometricalrepresentationoftherelations(DeunandDelbeke2000).
WeusedtheMDSprocedureinSPSSbasedontheALSCALoralternatingleastsquaresscaling(Takaneetal.
1977),themostpopularalgorithminMDS.
Forsimplicity,wechosetwodimensionsandpresentedthe48ITinnovationsinatwo-dimensionalscatterplot.
ResultsFigure1istheMDSplotofthe48innovations,withanR-squaredof0.
72,meaningthat72%ofthevarianceofthescaleddatacanbeaccountedforbytheMDSprocedure.
Tointerpretthisplot,wefollowedCoxon(2006)anddrewclosedcontoursaroundtheitemsthatweconsidercloselyrelatedinnovationsbasedonthelocationsoftheitemsandourownknowledgeoftheinnovations.
Theareassoenclosedrepresentregionsofrelativelyhighdensity,andtheextentoftheirdissociationisthedistanceinaMDSconfiguration(Coxon2006).
Forillustration,inFigure1wehaveidentifiedfivegroups,whichwedescribeonebyonebelow.
Group1includesWeb2.
0,socialnetworking,MySpace,blog,YouTube,wiki,andWikipedia.
Apparently,theyseemtobelongtotheWeb2.
0familybroadlydefined.
HencewenamedthisgroupWeb2.
0.
ThisgroupisclosetoOpenSourceSoftware(OSS).
WesuspectthatsomecommonattributessharedbyOSSandWeb2.
0technologies,suchasopenness,freedom,anduserparticipation,mayexplaintheproximity.
Tsuietal.
/UnderstandingITInnovationsthroughComputationalAnalysisofDiscourseThirtiethInternationalConferenceonInformationSystems,Phoenix20095Figure1.
MDSPlotofthe48ITInnovationsfrom10-yearInformationWeekDataWecountedthenumberofparagraphseachyearcontainingtheinnovationconceptsinGroup1andFigure2showsthepopularitycurvesoftheseinnovations.
Thenumberofparagraphsaboutaninnovationindicatestheprevalenceorpopularityoftheinnovationinthediscourse.
Interestingly,conceptsinthisgroupfollowedsimilarpatternsinpopularity:Everyconcepthadasignificantsurgearound2005and2006.
ThisfindingseemstosuggestthatitemsclosetoeachotherinaMDSplottendtofollowsimilarpopularitypatternsinthediscourse.
Group2hasteninnovationsandtwosub-groups(Subgroups2.
1and2.
2.
)areevident.
Subgroup2.
1includesWi-Fi,GlobalPositioningSystem(GPS),andBluetooth.
Subgroup2.
2includesiPod,iPhone,andMP3player.
Besidesthesesubgroups,Group2alsoincludesPersonalDigitalAssistant(PDA),multimedia,tabletPC,anddigitalcamera.
Subgroup2.
1seemstorepresentthewirelesstechnologiesformobiledevicesandSubgroup2.
2isaboutmobiledevicesthemselves.
Intuitively,wenamedGroup2mobiledevices.
ThepopularitycurvesfortheinnovationsinSubgroup2.
1arepresentedinFigure3.
SimilartotheinnovationsinGroup1,thethreeinnovationsinSubgroup2.
1hadsimilarpopularitypatterns.
However,thepopularitycurvesfortheinnovationsinSubgroup2.
2showninFigure4didnotfollowsimilarpatterns.
Rather,Figure4impliesthatiPhonemighthavesupersededoldertechnologiessuchasiPodandMP3players,suggestingthatnewinnovationsmayforceoldinnovationsout(AbrahamsonandFairchild1999).
Group3isthelargestgroupwith21innovationsintheupper-leftquadrantoftheplot(Figure1).
Ingeneral,theyareenterpriseITinnovationssuchasCRM,e-business,andERP.
ThepopularitycurvesforfiveinnovationsselectedfromGroup3arepresentedinFigure5.
Theseinnovationsexperiencedtheirpeaksaround1999and2000,andthentheirdiscoursesdwindled.
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00MySpaceYouTubeBlogSocNetWikiiPodBluetoothGPSWiFiDigiCamPDAMultimediaOutsourceTabletPCVPNDSLRFIDCADDWGrpwareOLAPUtiCompEgovAIBIOSSIMWikipediaWeb2.
0MP3iPhoneSmartCardATMTelecommuteDLearnSFAeComLinuxSOAKMSCMVirtualizationEDIASPERPeBizCRMWebServ122.
12.
23GeneralTopics6ThirtiethInternationalConferenceonInformationSystems,Phoenix200901002003004005006007008001998199920002001200220032004200520062007ParagraphCount(Blog,MySpace,SocNet,Web2.
0)01020304050607080ParagraphCount(Wiki,Wikipedia,YouTube)BlogMySpaceSocNetWeb2.
0WikiWikipediaYouTube0501001502002503003504004501998199920002001200220032004200520062007ParagraphCountBluetoothGPSWiFiFigure2.
PopularityofConceptsinGroup1Figure3.
PopularityofConceptsinSubgroup2.
10501001502002503003501998199920002001200220032004200520062007ParagraphCountiPhoneiPodMP30500100015002000250030001998199920002001200220032004200520062007ParagraphCountASPCRMeBizeComERPFigure4.
PopularityofConceptsinSubgroup2.
2Figure5.
PopularityofConceptsinGroup3DiscussionValidityandAdvantagesoftheComputationalDiscourseAnalysisTheresultsfromtheKL-divergenceandMDSanalysisapparentlydemonstratethatinnovationswithsimilarcontentsand/orintrinsicrelationshipsarecloselylocatedinthetwo-dimensionalspatialrepresentationofthediscourse.
Whilethisfindingisunsurprisingtoanyonewithatleastbasicfamiliaritywiththeinnovations,theresultsprovidereasonableconfidenceintheinternalvalidityofthestudy'scomputationalapproachtodiscourseanalysis.
Tofurtherstrengthensuchconfidence,wecollectedallthearticlespublishedinComputerworld,anotherITtrademagazine,inthesameten-yearperiodandperformedthesameanalysis.
TheMDSplotbasedontheComputerworlddataturnedouttohaveadifferentorientation–innovationsinGroups1and2appearedintheleftsideofthechartandGroup3appearedontheright.
TheorientationoftheconfigurationofpointsinaMDSplotisoftenarbitraryregardingthecoordinateaxesandthustheplotisfreetorotateorflip(Shepardetal.
1972).
Exceptthedifferentorientationsoftheaxes,theMDSplotsbasedonthetwodatasetsareverysimilartoeachother.
Thisadditionalanalysissuggestsreasonableexternalvalidityofthe"KL-divergenceplusMDS"analyticalapproach.
Inadditiontointernalandexternalvalidity,thisapproachhasseveraladvantages.
Foremost,computationalanalysisisscalable.
Thestudyhasexaminedthediscourseon48innovationsintenyears,alreadysurpassingthescaleandscopeofmanyinnovationstudies.
Whilewehaveusedjusttwotrademagazinesforthisillustration,thecapabilityofthisapproachisnotlimitedtothenumberortypeofdiscourseoutlets.
Further,althoughourownknowledgeTsuietal.
/UnderstandingITInnovationsthroughComputationalAnalysisofDiscourseThirtiethInternationalConferenceonInformationSystems,Phoenix20097helpedvalidatethemethodsintheillustrationstudy,themethodsthemselvesdonotrelyonexpertknowledge.
Thisfeaturedifferentiatesourapproachfromotherclassificationmethodsbasedonexpertratingsoropinions(e.
g.
,Ein-DorandSegev1993;SwansonandRamiller1993).
Expertknowledgecanbeusefulforspecificresearchobjectives,butmethodsrelyingonexpertsarenotscalable.
Moreover,unlikescalableanalysisthatreliesonrelativelythinobservations,suchascitations(e.
g.
,Bettencourtaetal.
2006)orvocabulary(e.
g.
,AbrahamsonandEisenman2008),theKLdivergencemeasurecapturesboththevocabularyandtherichcontextofthevocabularyuseinthediscourse.
Overall,theseadvantagescreateamiddlegroundwherebothbreadthanddepthcanbeachievedindiscourseanalysis.
ImplicationsforITInnovationResearchandPracticeTheecologicalviewofITinnovationsandthecomputationaldiscourseanalysisareusefulforbothscholarsandpractitionerstounderstandtheemergence,co-existence,relationship,andevolutionofinnovations.
Weexplaintheimplicationsbelow,revisitingtheseriesofquestionsweraisedintheIntroduction.
UnderstandingEmergenceWeappliedourknowledgeofexistingITinnovationstovalidatethecomputationalapproachintheillustrativeempiricalstudy.
Whensuchknowledgedoesnotexist,asinthecaseofemerginginnovations,thesameanalysiscanbeappliedtothediscourseaboutnewinnovations,andtothediscourseaboutexistinginnovationsaswell.
Aninnovation'slocationintheMDSplotmayindicateitsbroadtypeanditsproximitytoexistingconceptswithinthesametypemayindicatenovelty.
InassessingthenewnessofCloudComputing,forexample,itwouldbeusefultocheckitslocationinreferencetothoseofotherinnovationssuchasUtilityComputingandWebServices.
UnderstandingCoexistenceandRelationshipWithregardtothecomplexrelationshipsamongexistinginnovations,theMDSplotbasedonKLdivergencecanhelpvisualizebroadcategories.
Forexample,inFigure1,Group2isaboutmobiledeviceswhileSubgroup2.
1isaboutwirelesstechnologies.
ThehierarchicalrelationshipillustratedbyGroup2andSubgroup2.
1suggeststhatmobiledevicesareenabledbywirelesstechnologies.
However,theMDSplotonitsowncannotfullyexplaintherelationshipsamonginnovations.
Aswehaveseen,thepopularitycurvesofcloselylocatedinnovationsmayfollowsimilarpatterns(e.
g.
,Figures2and5)ortheymaysignificantlydiffer,suggestingsubstitution(e.
g.
,Figure4)orcompetition.
Therefore,wesuggestcombiningtheuseofMDSplotbasedonKLdivergencewithtimeseriesanalysisofthepopularityofinnovations.
Thiscombinedapproachcouldbeusedtodetectthecomplementaryand/orcompetitiverelationshipsamongcoexistinginnovations.
UnderstandingEvolutionandCo-EvolutionOvertime,themeaningofanITinnovationconceptmaychangeandtherelationshipsamonginnovationsmayalsochange.
Forexample,intheearly1990s,CRMwasinitiallyconceptualizedasanautomationtoolforimprovingtheefficiencyofanorganization'ssalespeople,thenasabackbonetechnologyforenhancingtheeffectivenessofcustomerservices,andmorerecentlyasamarketinginnovationforbusinessintelligence(BI)gathering.
Consistentwiththisstory,Figure6showsthatCRMhadmovedawayfromSalesForceAutomation(SFA)by1998andmovedclosertoBIin2001.
Organizationsandpeopleininnovationcommunitiesaresensitivetothesechanges.
Forexample,thestatisticssoftwarecompanySASstrategicallymovedawayfromtheCRMlabelforitssoftwareproductstotheembracetheBIlabelaround2002(WangandSwanson2008).
Tostudytheevolutionofasingleinnovation,olderdiscourseandnewerdiscourseaboutthesameinnovationcanbeanalyzedandpositionedinthesameMDSplot,revealingtheevolutionarytrajectory.
Regardingtheco-evolutionofinnovationsandcommunities,itwouldbeusefultoanalyzethediscoursesofdifferentmembersinacommunity(vendordiscourseonCRMvs.
academicdiscourseonCRM)andcomparethelocationsofthemembersinMDSplots,discoveringtheleading,following,converging,ordivergingopinionsabouttheinnovation(Barleyetal.
1988).
GeneralTopics8ThirtiethInternationalConferenceonInformationSystems,Phoenix200919982001Figure6.
TheEvolutionofCRMNextStepsAspartofthisstudy,wearetakingthreestepstodomorein-depthanalysisoftheInformationWeekandComputerworlddata.
First,weareapplyinghierarchicalclusteringanalysistoKLdivergencematrixes.
Clusteringanalysiswillhelpusnotonlygrouptheinnovationssystematically,butalsodiscoverthehierarchicalstructureofinnovationsatfiner-grainlevels,possiblydetectingcommonalitiesanddistinctionsamongdifferenttypesofinnovationssuchasprocessvs.
productinnovations,management-focusedvs.
technology-focusedinnovations,andproductvs.
serviceinnovations.
Second,inadditiontotheITinnovations,weplantoaddtotheanalysiskeywordsthatrepresentmaindiscursivethemessuchascustomer,automation,end-user,andoptimization.
WewillassesstheextenttowhichITinnovationsclusteraroundthesekeywordsinMDSplotsinordertofurtherunderstandthemulti-dimensionalinnovationecosystem.
Third,weplantoexpandfromourpreliminaryanalysisoftheevolutionofCRMandrelatedinnovationstoalongitudinalanalysisofallinnovationsinourdata.
Wewillslicethedatabyyearandperformthesameanalysisoneachyear'sdata.
Thislongitudinalanalysiswilllikelyrevealthedynamicevolutionofinnovationsandtheirecosystem.
Goingbeyondthisstudy,weareexpandingtheInformationWeekandComputerworlddatafrom10yearsto20yearssothatwecanstudytheevolutionofmoreinnovationsoveralongerperiodoftime.
Thislargerdatasetwillallowustoinvestigatefurtherthecomplexrelationshipsamonginnovationsandfine-tuneourmethodstoteaseoutcompetition,complementation,substitution,andhierarchy.
Inaddition,recognizingthatthetwotrademagazinesonlyrepresentasmallportionofthelargerdiscourseintheinnovationecosystem,wewillcollectdatafromothertypesofdiscourseoutletssuchasacademicjournals,blogs,andwikis.
Weplantoassesstherobustnessofourapproachandlookforwardtodiscoveringinterestingdifferencesandqualifications.
Datafrommultiplesourceswillallowustoconstructamorerealisticrepresentationoftheinnovationnetworkandcommunities.
Finally,becausepositiveandnegativediscoursesmayhavedifferentiatedinfluencesonpopularity(Wang2009),weplantoenhanceourpresentcomputationaldiscourseapproachwithsentimentanalysis.
Suchlongerexaminationperiods,largerandbroaderdatasets,andricheranalysiswilllikelysustainourcontinuedresearchprogramontheITinnovationecosystem.
ConclusionInconclusion,theecologicalviewofITinnovationconceptsandthescalablecomputationaldiscourseanalysispresentedhereprovidethetheoreticalfoundationandmethodologyforscholarsandpractitionerstomonitorandmakesenseofITinnovationsintheideamarketplace.
TheprosperityandefficiencyofthatmarketplacedependontheknowledgeabouthowITinnovationsandcommunitiesemerge,coexist,andevolveinadynamicsocial-technicalecosystem.
Thisstudyandourbroaderresearchprogramwillcontributesuchcrucialknowledge.
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/UnderstandingITInnovationsthroughComputationalAnalysisofDiscourseThirtiethInternationalConferenceonInformationSystems,Phoenix20099AcknowledgementsThispaperisbaseduponworksupportedbytheNationalScienceFoundationunderGrantsNo.
IIS-0729459andSBE-0915645.
WewouldliketothankLidanWangforhersuggestiontousesymmetrizedKLdivergence.
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