OLAP系统平台—多维联机分析系统XOLDAS的分析与设计

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1、上海海运学院硕士学位论文OLAP系统平台—多维联机分析系统XOLDAS的分析与设计姓名：安亚巍申请学位级别：硕士专业：计算机应用技术指导教师：沈康辰20040101OLAP系统平台一多维联机分析系统XOLDAS的分析与设计SystemAnalysisandDesignofXOLDAS一AGeneralOLAPPlatformABSTRACTOLAPisdataanalysistechniquebasedonmultidimensionaldatamodel,bywhichdataanalystcanhavefast,consistent,andinteractiveaccesstoth

2、edataandgetallkindsofmultidimensionalviewofinformation.Hence,theinnerrelationshipbetweendataandtheruleshiddenbehindthemcanbefoundoutandthendecision-makerscanbeprovidedwithmuchstrongerdecisionsupports.Afteritsbeingputforward,OLAPhasgotarapiddevelopmentoutsideChina,anddozensofmultidimensionalanaly

3、sisproductsbasedonOLAPareavailableonthemarketpresent扮.WhiletheapplyingofOLAPindomesticenterprisesisstillonlowlevel,andnopowerfullocalOLAPsystemhasbeendeveloped.ExtensibleOnLineDataAnalysisSystem(XOLDAS)presentedinthisdissertationisageneralOLAPplatform,designedaccrodingtoMufti-dimensionalOnLineDa

4、taAnalysis(MOLDA)modelwhichisbuiltonbaseoftheresultofinvestigationindomesticgovernmentsectorsandenterprisesanddesignedaccordingtotheiractualrequirementsfordataanalysis.Onthisplatform,usercandesignspecificOLAPsystemstosolveproblemstheyconcernedinanyspecificbusinessfield.Thesystemconsistsofthreema

5、inparts一DataSource,BusinessSpaceandAnalysisLibrary.DataSourcedescribesbusinessdatabaseandisusedtoconnecttodatabaseandgetdatafromit.BusinessSpaceexpressesallthepossibleanalysisrequirementsusersmayhaveandletuserstodevotealltheiratentionstothebusinessproblemswhileanalyzing.Manystatisticalmethodswhi

6、charestoredinAnalysisLibraryareimportedandappliedtodataanalysisprocess.Notonlysimpleinformation,suchasdatacountingandsummary,butalsotheinnerrelationshipbetweendatacanbeobtainedfromanalysisresultsgotbyusingthesemethods.According呼，thedevelopmenttrendcanbelearnt,whichimprovethescientificalnessofdec

7、ision.Thisdissertationconsistsofsevenchapters.ChapterIisintroduction.OLAPandMOLDAareintroducedinChapter11.InChapter111,XOLDASandconcepts,designandimplementationtechniquesofitsthreepartsarepresentedindetail.ChapterIVisfunctio