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1、ANARCHITECTUREFRAMEWORKFORCOMPLEXDATAWAREHOUSESJer´omeDarmont,OmarBoussaˆ¨ıd,Jean-ChristianRalaivaoandKamelAouicheERIC,UniversityofLyon25avenuePierreMendes-France`69676BronCedexFranceContactemail:jerome.darmont@univ-lyon2.frKeywords:Datawarehousing,Complexdata,XMLwarehousi
2、ng,Metadata,Domain-specificknowledge.Abstract:Nowadays,manydecisionsupportapplicationsneedtoexploitdatathatarenotonlynumericalorsymbolic,butalsomultimedia,multistructure,multisource,multimodal,and/ormultiversion.Wetermsuchdatacomplexdata.Managingandanalyzingcomplexdatainvol
3、vesalotofdifferentissuesregardingtheirstructure,storageandprocessing,andmetadataareakeyelementinalltheseprocesses.Suchproblemshavebeenaddressedbyclassicaldatawarehousing(i.e.,appliedto“simple”data).However,datawarehousingapproachesneedtobeadaptedforcomplexdata.Inthispaper,
4、wefirstproposeaprecise,thoughopen,definitionofcomplexarXiv:0707.1534v1[cs.DB]10Jul2007data.Thenwepresentageneralarchitectureframeworkforwarehousingcomplexdata.Thisarchitectureheavilyreliesonmetadataanddomain-relatedknowledge,andrestsontheXMLlanguage,whichhelpsstoringdata,met
5、adataanddomain-specificknowledgealtogether,andfacilitatescommunicationbetweenthevariouswarehousingprocesses.1INTRODUCTIONtopic,whichwouldbeavailableundervariousformats(videos,images,sounds,texts,etc.).Complexdatamightbestructuredornot,andareDatawarehousingandOLAP(On-LineAna
6、lyticaloftenlocatedindifferentandheterogeneousdataProcessing)technologies(Inmon,2002;Kimballandsources.BrowsingthesedatanecessitatesanadaptedRoss,2002)arenowconsideredmature.Theyareapproachtohelpcollect,integrate,structureandeven-aimed,forinstance,atanalyzingthebehaviorofa
7、tuallyanalyzethem.Adatawarehousingsolutioniscustomer,product,orcompany,andmayhelpmon-interestinginthiscontext,thoughadaptationsareob-itoringoneorseveralactivities(commercialormed-viouslynecessarytotakeintoaccountdatacomplex-icalpursuits,patentdeposits,etc.).Moreprecisely,i
8、ty.Measuresmightnotnecessarilybenumerical,fortheyhelpanalyzingtheseactivitiesundertheform
