*******************Muchlikeprocessmapping,canbedoneatanylevel–typicallychoosestart/stoppointwithinasingle****************ThemainideabehindaPullSystemisthattheentiresupplychainisdrivenbycustomerneeds.Conventionalmanagementsystemsarebasedonschedules,whichmeanspartsare‘pushed’towardtheendoftheprocess.WithPullSystems,partsaregoingforwardonlyifthecustomerrequeststhem(as‘pulled’).Additionally,PullSystemsemployavarietyofsignalingdevicestosignalproductionaswellaslimitinginventory.Finally,implementingPullsimplifiesoreliminatesdocumentationintheprocess.*ThetraditionalapproachtoschedulingproductionprocessesisthroughaPushSystem.Productsarereleasedandpushedthroughproductionordistributionbasedonascheduleandtheflowispredeterminedandscheduledbasedonprojectedrequirements,availableinventory,in-transitinventory,andscheduledreceipts.ThecommonsayingforaPushSystemis,“Readyornot,hereIcome!”InaPushSystemthecommonassumptionisthatthereceivingworkcenterordepartmentwillbereadyfortheproductswhentheyarrive.Outputcontinueswithoutregardtoactualdownstream–and,ultimately,thecustomer–needs.*PushSystemsandPullSystemsareverydifferentmethodologies.Themajordifferencesbetweenthetwoarewithregardtoplanningandworkauthorization.Withrespecttoplanning,inaPushSystemallworkiscompletedbasedonaplanningsystem.InaPullSystem,workcenterstaketheircuetoproducefromdownstreamusers.Inthiscase,usersofthematerialdeterminetheamountthatisproducedbytheworkcenterandisnotdeterminedbyaplanningsource.Withrespecttoworkauthorization,inaPushSystemordersareimmediatelysenttothenextworkcenterwhentheordersarecompletedanditisassumedthatthenextworkcenterwillbereadytoprocesstheorder.InaPu