SimulationValidation-IndianInstituteofTechnologyMadras仿真验证-印度马德拉斯技术学院

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1、SimulationValidationWritingacomputercodeisthebestwaytodebugyourthoughts!StepsinSimulationStudyFormulatetheproblemandplanthestudyCollectdataanddefineamodelCheckforvalidityWriteacomputerprogramandverifyMakeapilotrunCheckforvalidityDesigntheexperimentsMakeproductio

2、nrunsAnalyzeoutputdataDocument,present,implementresults2BuildingSimulationModelsSystemConceptualmodelSimulationprogram“Correct”resultsavailableResultsimplementedAnalysis&dataSteps:1,2,3ProgrammingStep:4MakemodelrunSteps:5-9SellresultsStep:10ValidationVerificatio

3、nValidationEstablishcredibility3Validation,VerificationVerificationisdeterminingwhetherthesimulationcomputerprogramperformsasintended(debuggingthecomputerprogram).Verificationchecksfortranslationofconceptualsimulationmodel(flowchartsandassumptions)ontoacorrectly

4、workingprogram.Practicaldifficultiesindebuggingalarge-sizedcomputercodesareobvious!4Validation,VerificationValidationisconcernedwithdeterminingwhethertheconceptualsimulationmodelitselfisaccuraterepresentationofthesystemunderstudy.Ifthemodelis“valid,”theconclusio

5、nsdrawnfromitshouldbesimilartotheonesmadebyphysicallyexperimentingwiththesystem.Whenthesimulationmodelanditsresultsareacceptedbythemanager/clientasvalid,andareusedtomakemanagerialdecisions,themodelissaidtobecredible.5ValidationofSimulationmodelGoalofvalidationis

6、toensurethatthesimulationmodelisgoodenoughsothatitcanbeusedtomakedecisionsaboutthesystemsthatweideallywouldliketoworkwith.Easeordifficultyofthevalidationprocessdependsonthecomplexityofthesystembeingmodeledandonwhetheraversionofasystemcurrentlyexists.Asimulationm

7、odelofacomplexsystemcanonlybeanapproximationtotheactualsystem,regardlessofhowmucheffortisputintodevelopment.Thereisnosuchthingasabsolutelyvalidmodel!Asimulationmodelisalwaysdevelopedforaparticularpurpose.6ValidationofSimulationmodelAlogbookofthesimulationmodel’s

8、assumptionsshouldbeupdatedonaregularbasisandeventuallyshouldformintegralpartofthefinalreport.Asimulationmodelshouldbevalidatedrelativetothosemeasuresofperformancethat