资源描述：
《the min-max approach to inventory management is a …》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、GordonGrahamNotesWhyDoDistributorsNeedaGoodInventorySystem?qMostdistributorscarry30to40percentmoreitemsanddollarsininventorythantheyneed!Usage–TheMostImportantElementofInformationqUSAGE!!!Thesinglemostimportantpredictionadistributormakesishowmuchofastockitemwillbeusedint
2、hefuture.Usedforinventorycontrolpurposes,meansallwithdrawalsfromstockataspecificcompanylocationinsalestocustomers,replenishmentofotherbranches,andinternalcompanyneeds.Typicallydefinedasanaveragenumberpermonth.qFor80%ofyourstockitems,themonthlyusagerateismostaccuratelydev
3、elopedbyselectingthelast6monthsofhistory,totalingfigures,anddividingbysix.qSeasonalitems:Foreveryprinciple,thereareexceptions.Anitemisseasonalwhen80%oftheannualsalesvolumefallsinsix(orless)consecutivemonths.qNon-recurringtransfersfromonebranchtoanothershouldnotbecounted.
4、qSafetyallowanceiscalculatedonlyontheregularsales.qConditionsthatshouldcausehistorydisqualification:oUnusualsalesortransfersinamonth.oStockoutsthatlastaslongas2weeksduringamonth.oItemswithonlyasinglecustomer,orwhereonecustomerdominatesthesales.oItemswithverylowsalesperye
5、ar(lessthan½unitpermonth.)qThese4conditionsaccountfor95%oftheheadachesininventorycontrolofstockeditems….butarefoundatanyonetimeinonlysome20%orlessoftheitemsinstock.qThecomputerinsertsaflagtodisqualifythehistory.oTherule:Whenthelastmonth’spostedhistoryisequaltothetotaloft
6、heprevious5month’sfigures,thelastmonthshowedatleast5unitssold,andtheitemunitcostissignificant.MoreInformationRequiredForGoodInventoryControlq“K”Factor=Totalannualcosts/avginventoryvalue.Thisfactorrepresentsthehandlingcostsforinventory.Thematerialhandlingexpensetotalomits
7、thoseactivitiesthatcouldbelabeledsales-generated…..thepicking,packing,andshipping/deliver.Itdoesincludeallpeople,functionsandexpenseinbringinginmaterialandputtingitaway,uptothepointthattheorder-fillingfunctionstarts.Formostdistributors,theexpensesegmentstoincludeareabout
8、60%ofthetotalwarehouseanddeliveryexpensesforayear.qForashortcutinfiguringoutyour“K”factor,simplyadd20%t
