英文定义.docx
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英文定义.docx
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英文定义
GlossaryofInventoryandMaterialsManagementDefinitions
bytheSupply-ChainInventoryManagementSIG
Aproduct(oritem)
SeeABCClassification
ABCAnalysis
AformofParetoanalysisappliedtoagroupofproductsinordertoapplyselectiveinventorymanagementcontrols.Theinventoryvalueforeachitemisobtainedbymultiplyingtheannualdemandbyunitcostandtheentireinventoryisthenrankedindescendingorderofcost.However,theclassificationparametercanbevaried;forexample,itispossibletousethevelocityofturnoverratherthanannualdemandvalue.
ABCClassification
Theclassificationofinventory,afterABCanalysis,intothreebasicgroupsforthepurposeofstockcontrolandplanning.Althoughfurtherdivisionsmaybeestablished,the3basiccategoriesaredesignatedA,BandCasfollows:
AItems-Anitemthat,accordingtoanABCclassification,belongstoasmallgroupofproductsthatrepresentsaround75-80%oftheannualdemand,usageorproductionvolume,inmonetaryterms,butonlysome15-20%oftheinventoryitems.Forthepurposeofstockcontrolandplanning,thegreatestattentionispaidtothiscategoryofA-products.Aitemsmayalsobeofstrategicimportancetothebusinessconcerned.
BItems-Anintermediategroup,representingaround5-10%oftheannualdemand,usageorproductionvaluebutsome20-25%ofthetotal,thatispaidlessmanagementattention.
CItems-AproductwhichaccordingtoanABCclassificationbelongstothe60-65%ofinventorythatrepresentsonlyaround10-15%theannualdemand,usageorproductionvalue.Leastattentionispaidtothiscategoryforthepurposeofstockcontrolandplanningandprocurementdecisionsforsuchitemsmaybeautomated.
ActiveInventory
Anyitemorelementofinventorywhichhasbeenusedorsoldwithinagivenperiod
AggregateInventoryManagement
Thesizeofmanyinventoriesrequiresthattheybebrokendownintogroupingsforthepurposeofcontrol.Aggregatedinventoryisthefurthercollectionofthesegroupingsintoasingleentitytoenabletheestablishmentofoperatingpolicies,keyperformanceindicators,targetsandreports.AggregateInventoryManagementenablessuchthingsastheoveralllevelofinventorydesiredtobeestablishedandthenappropriatecontrolsimplementedtoensurethatindividualoperatingdecisionsachievethatgoal,atoptimumcost.
AllocatedStock
Apartthathasbeenreserved,butnotyetwithdrawnorissuedfromstock,andisthusnotavailableforotherpurposes
All-TimeOrder
Thelastorderforaparticularproductinthelastphaseofitslifecycle.Thisorderisofsuchasizethatthestockprovidedwillsatisfyallexpectedfuturedemand(seealltimerequirementbelow)fortheproductconcerned.Sometimesknownasalifeoftypeorder.
All-TimeRequirement
Thetotalrequirementforaparticularproducttobeexpectedinthefuture.Normallyusedforproductsinthelastphaseoftheirlifecycles,whenproductionis(nearly)stopped.
All-TimeStock
Thestockresultingfromtheassessmentofanall-timerequirementanddeliveryofanall-timeorder.Ifnecessary,controlscanbesetforsuchstocktoavoidconsumptionofitemsforreasonsoverandabovethoseforwhichusagewaspredicted.
AnticipationStock
Inventoryheldinordertobeableto:
Satisfyademandwithseasonalfluctuationswithaproductionlevelthatdoesnotfluctuateatallorthatvariestoalesserextentthanthedemand
Copewitherraticproductionordeficienciesinproductioncapacity
Availability
Theprimarymeasureofsystemperformancerelatingtotheexpectedpercentageofthesupportedsystemthatwillbeavailableatarandompointintimeandnotoutofserviceforlackofspares.
AvailableStock
Thestockavailabletoserviceimmediatedemand
AvailabletoPromise(ATP)
Theuncommittedportionofacompany’sinventoryandplannedproduction,maintainedinthemasterscheduletosupportcustomerorderpromising.TheATPquantityistheuncommittedinventorybalanceinthefirstperiodandisnormallycalculatedforeachperiodinwhichanMPSreceiptisscheduled.Inthefirstperiod,ATPincludeson-handinventorylesscustomerordersthataredueandoverdue.
BProduct(oritem)
SeeABCClassification
Backflushing
Thedeductionfrominventory,aftermanufacture,ofthecomponentpartsusedinaparentbyexplodingthebillofmaterialsbytheproductiontotalofparentsproduced
Backorder
Acustomerdemandforwhichnostockisavailableandwherethecustomerispreparedtowaitfortheitemtoarriveinstock
BeyondEconomicRepair(BER)
Wheretheprojectedcostofrepair,normallyforarepairableorrotableitem,exceedsamanagementsetpercentageofthereplacementvalueoftheitemconcerned
BarCode
SeeLinearBarCode
BatchNumber
Acodeusedtoidentifythespecificproductionpoint,foraproductoranassembly,inamanufacturingorassemblyprocess
BillofMaterial
Alistingofcomponents,parts,andotheritemsneededtomanufactureaproduct,showingthequantityofeachrequiredtoproduceeachenditem.Abillofmaterialissimilartoapartslistexceptthatitusuallyshowshowtheproductisfabricatedandassembled.Alsocalledaproductstructurerecord,formula,recipe,oringredientslist.
BufferStock
SeeSafetyStock
BuildStock
SeeAnticipationStock
BuildtoOrder
SeeMaketoOrder
C-Product(oritem)
SeeABCClassification
CategoryManagement
Themanagementofgroupsofproductsthatareinterchangeable,orsubstitutable,inmeetingconsumerneedsasopposedtothetraditionalconcentrationonindividualproductsandbrands
Co-ManagedInventory
AsupportarrangementsimilartoVendorManagedInventorybutwherereplacementordersforthevendor-ownedstockareagreedbytheuserpriortodelivery
Component
Apart,ingredient,orsubassemblythatisbothacomponenttoahigherlevelpart,andaparentparttoothercomponents
ComponentPart
Rawmaterial,ingredient,part,orsubassemblythatgoesintoahigherlevelassembly,compound,orotherpart
ConsignmentStock
Thestockofgoodsheldbyanexternalcustomerwhichisstillthepropertyofthesupplierbutforwhichpaymentisonlymadewhenstockissoldorusedbythecustomer
Consumable
Aclassificationofstockusedtodescribeitemsorproductsthataretotallyconsumedinuseegpaper,oil,greaseetc
ContingencyStock
Stockheldtocoverpotentialsystemfailuresituationswhichcanbemathematicallymodeled
ContinuousImprovement(CI)
Atermthatdescribesthemanymanagementpracticesandtechniquesusedtofindandeliminatewasteandtogeneralimprovementsinbusinessprocesses,qualityorcosts
"ControlGroup"CycleCounting
Therepeatedphysicalinventorytakingofasmall"controlgroup"ofparts,inthesamelocations,withinaveryshorttimeframetoverifythedesignofanewinventoryprocess.Itistheonlyformofcyclecountingnottrulyusedtomeasureinventoryrecordaccuracy.
CycleCounting
Cyclecountingisthephysicalcountingofstockonaperpetualbasis,ratherthancountingstockperiodically.Acycleisthetimerequiredtocountallitemsintheinventoryatleastonce.Thefrequencyofcyclecountingcanbevariedtofocusmanagementattentiononthemorevaluableorimportantitemsortomatchworkprocesses.Someofthesystemsusedare:
ABCsystemwiththehighestcountfrequencyforitemswiththehighestannualusagevalue
Reordersystemwhenstocksarecountedatthetimeoforder
Receiversystemwithcountingwhengoodsarereceived
Zerobalancesystemtocountitemswhenabackordersituationisreachedtoconfirmthatnostockisheld
Transactionsystemwherestocksarecountedafteraspecifiednumberoftransactions
CycleStock
SeeWorkingStock
De-CouplingStock
Inventoryaccumulatedbetweendependentactivitiesinthegoodsflowtoreducetheneedforcompletelysynchronisedoperations
DeductPoint
Thepointintheproductionprocessuptowhichallthepartsassumedtohavebeenused(asdefinedinthebillofmaterial)are"backflushed",(automaticallydeducted)fromtheinventoryrecords.AlsoseeBackflushing.
DemandForecast
SeeForecastDemand
DemandSatisfactionRate
SeeFillRate
DenominationofQuantity
SeeUnitofMeasure
DependentDemand
Aclassificationusedininventorycontrolwherethedemandforoneitemhasadirectmathematicalrelationshipwiththedemandforanotherhigherlevelorparentcomponentandwherethedemandforthatitemisultimatelydependentonthedemandforthehigherlevelorparentitem
DeterministicInventoryControlModels
Aninventorycontrolsystemwhereallthevariablesandparametersusedareknown,orcanbecalculatedwithcertainty.Therateofdemandforitems,andtheassociatedinventorycosts,areassumedtobeknownwithassuranceandthereplenishmentleadtimeisassumedtobeconstantandindependentofdemand.
DistributionRequirementPlanningDRPI
Thefunctionofdeterminingtheneedtoreplenishinventoryatbranchwarehousesoveraforwardtimeperiod.Atime-phasedorderpointapproachisusedwhereplannedordersatbranchwarehouselevelareexplodedviaMRPlogictobecomegrossrequirementsonthesupplyingsourceenablingthetranslationofinventoryplansintomaterialflows.Inthecaseofmulti-leveldistributionnetworks,thisexplosionprocesscancontinuedownthroughthevariouslevelsofregionalwarehouses,masterwarehouse,factorywarehouseetcandbecomeinputtothemasterproductionschedule.
DistributionResourcePlanningDRPII
TheextensionofMRPintotheplanningofthekeyresourcescontainedinadistributionsystem
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