business environment and concept information technology (bec)
business environment and concept information technology (bec)
ID:7296245
大小:1.27 MB
页数:37页
时间:2018-02-10
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1、Module39MODInforUmaLE tion34 TeTAchnoXlEogSy:TRANSACTIONSINPROPERTYBusinessEnvironmentandConcepts主讲老师:Amy1Copyright高才国际教育集团M41FinancialManagementA. Information Systems within a BusinessB. Characteristicsof Computer Systems—GeneralC. Characteristicsof Computer Systems—SpecificD. Effect of IT on Int
2、ernal ControlE. Flowcharting2 A. Information Systems within a Business3AInformationSystemswithinaBusiness1.Definitiona)Processdataand transactionsto provideuserswith theinformationto plan,control and operate an organization,includingØCollecting transaction and other data ØEntering it into the info
3、rmation systemØProcessingthe dataØProviding users with the information needed ØControlling the process 2.Manual vs. Computer Systemsa)Computer processingtends toreduce oreliminateprocessing time ØComputational errorsØErrors in processing routinetransactions (when fraud is not involved)4 AInformati
4、onSystemswithinaBusiness3.Attributes of Paper vs. Electronic Systemsa)Difficultyof alteration—easier to change electronic data without detectionb)Prima facie credibility—easier todetermine the origin of paper documents c)Completeness of documents—more information in paperdoc. d)Evidence ofapproval
5、s—paperdocuments show approvals more obviously e)Ease of use—electronic data requires specialized knowledge to be accessed auditor4.Benefits of ITa)Consistency—computers process datathe same way every time b)Timeliness—electronic processing andupdating is normally more efficient c)Analysis—data ca
6、n be accessed for analytical procedures more conveniently (with proper softward)Monitoring—electronic controls can bemonitoredby the computer system itself e)Circumvention—controls are difficult tocircumvent when programmed properly, andexceptions are unlikely tobe permitted5 AInformationSystemswi
7、thinaBusiness5.Risks of ITa)Overreliance lwithout clear output, IT systems are often assumed tobeworkingwhen they are not b)Access lDestructionand alteration of large amounts of data are possible if unauthorized