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Module 3 Lecture Notes.docx

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Department
Administration
Course
ADM1370
Professor
All Professors
Semester
Fall

Description
Module 3 NotesSession 1 Database Management SystemsData and InformationDatarawfactsthatdescribethecharacteristicsofaneventInformationdataconvertedintoameaningfulandusefulcontextDatabasemaintainsinformationaboutvarioustypesofobjectsinventoryeventstransactionspeopleemployeesandplaceswarehousesData vs Information an ExampleRawDataoSharesexchangedinthestockmarketInformationoHowdidaparticularstockperformduringthelast6monthoHowdiditperformcomparetootherstocksImportance of Data ManagementDataiseverywhereinanorganizationDatahavebecomecentralandevenvitaltoorganizationsOrganizationsneedtomanagetheirdataassetsverycarefullytomakesurethatthedataareeasilyaccessedbymanagersandemployeesacrosstheorganizationTransactional Data and Analytical InformationData ManagementDatamanagementisastructuredapproachforcapturingstoringprocessingintegratingdistributingsecuringandarchivingdataeffectivelythroughouttheirlifecycleWhy does data management matterNoenterprisecanbeeffectivewithouthighqualitydatathatisaccessiblewhenneededOrganizationswithatleast1000knowledgeworkerslose57millionannuallyintimewastedbyemployeesreformattingdataastheymoveamongapplicationsWhat is the goal of data managementToprovidetheinfrastructureandtoolstotransformrawdataintousableinformationofthehighestqualityData PrinciplesPrincipleofdiminishingdatavaluePrincipleof9090datausePrincipleofdataincontextData Management ChallengesVolumeofdataisincreasingexponentiallyDataisscatteredthroughouttheorganizationDataiscreatedandusedofflinewithoutgoingthroughqualitycontrolchecksDatamayberedundantandoutofdatecreatingahugemaintenanceproblemFile OrganizationFileGroupofrecordsofsametypeRecordGroupofrelatedfieldsFieldGroupofwordsoracompletenumberByteGroupofbitsthatrepresentsasinglecharacterBit Smallest unit of data binary digit 01 Traditional standalone File EnvironmentWhenorganizationsbeganusingcomputerstheystartedwithoneapplicationatatimeusuallyaccountingbillingandpayrollEachappwasdesignedtobeastandalonesystemwhichledtodataproblems2MODULE 3 NOTES
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