整理计算机外文翻译英文文献中英版仓库管理系统WMSWord下载.docx

整理计算机外文翻译英文文献中英版仓库管理系统WMSWord下载.docx

《整理计算机外文翻译英文文献中英版仓库管理系统WMSWord下载.docx》由会员分享，可在线阅读，更多相关《整理计算机外文翻译英文文献中英版仓库管理系统WMSWord下载.docx（10页珍藏版）》请在冰豆网上搜索。

Atabareminimum,aWMSshould:

Haveaflexiblelocationsystem.

Utilizeuser-definedparameterstodirectwarehousetasksanduselivedocumentstoexecutethesetasks.

Havesomebuilt-inlevelofintegrationwithdatacollectiondevices.

DoYouReallyNeedWMS?

NoteverywarehouseneedsaWMS.CertainlyanywarehousecouldbenefitfromsomeofthefunctionalitybutisthebenefitgreatenoughtojustifytheinitialandongoingcostsassociatedwithWMS?

WarehouseManagementSystemsarebig,complex,dataintensive,applications.Theytendtorequirealotofinitialsetup,alotofsystemresourcestorun,andalotofongoingdatamanagementtocontinuetorun.That’sright,youneedto"

manage"

yourwarehouse"

management"

system.Oftentimes,largeoperationswillendupcreatinganewISdepartmentwiththesoleresponsibilityofmanagingtheWMS.

TheClaims:

WMSwillreduceinventory!

WMSwillreducelaborcosts!

WMSwillincreasestoragecapacity!

WMSwillincreasecustomerservice!

WMSwillincreaseinventoryaccuracy!

TheReality:

TheimplementationofaWMSalongwithautomateddatacollectionwilllikelygiveyouincreasesinaccuracy,reductioninlaborcosts（providedthelaborrequiredtomaintainthesystemislessthanthelaborsavedonthewarehousefloor）,andagreaterabilitytoservicethecustomerbyreducingcycletimes.Expectationsofinventoryreductionandincreasedstoragecapacityarelesslikely.Whileincreasedaccuracyandefficienciesinthereceivingprocessmayreducethelevelofsafetystockrequired,theimpactofthisreductionwilllikelybenegligibleincomparisontooverallinventorylevels.Thepredominantfactorsthatcontrolinventorylevelsarelotsizing,leadtimes,anddemandvariability.ItisunlikelythataWMSwillhaveasignificantimpactonanyofthesefactors.AndwhileaWMScertainlyprovidesthetoolsformoreorganizedstoragewhichmayresultinincreasedstoragecapacity,thisimprovementwillberelativetojusthowsloppyyourpre-WMSprocesseswere.

Beyondlaborefficiencies,thedeterminingfactorsindecidingtoimplementaWMStendtobemoreoftenassociatedwiththeneedtodosomethingtoserviceyourcustomersthatyourcurrentsystemdoesnotsupport（ordoesnotsupportwell）suchasfirst-in-first-out,cross-docking,automatedpickreplenishment,wavepicking,lottracking,yardmanagement,automateddatacollection,automatedmaterialhandlingequipment,etc.

Setup

ThesetuprequirementsofWMScanbeextensive.Thecharacteristicsofeachitemandlocationmustbemaintainedeitheratthedetaillevelorbygroupingsimilaritemsandlocationsintocategories.Anexampleofitemcharacteristicsatthedetaillevelwouldincludeexactdimensionsandweightofeachitemineachunitofmeasuretheitemisstocked（each,cases,pallets,etc）aswellasinformationsuchaswhetheritcanbemixedwithotheritemsinalocation,whetheritisrackable,maxstackheight,maxquantityperlocation,hazardclassifications,finishedgoodsorrawmaterial,fastversusslowmover,etc.Althoughsomeoperationswillneedtosetupeachitemthisway,mostoperationswillbenefitbycreatinggroupsofsimilarproducts.Forexample,ifyouareadistributorofmusicCDsyouwouldcreategroupsforsingleCDs,anddoubleCDs,maintainingthedetaileddimensionandweightinformationatthegrouplevelandonlyneedingtoattachthegroupcodetoeachitem.YouwouldlikelyneedtomaintaindetailedinformationonspecialitemssuchasboxedsetsorCDsinspecialpackaging.Youwouldalsocreategroupsforthedifferenttypesoflocationswithinyourwarehouse.Anexamplewouldbetocreatethreedifferentgroups（P1,P2,P3）forthethreedifferentsizedforwardpickinglocationsyouuseforyourCDpicking.YouthensetupthequantityofsingleCDsthatwillfitinaP1,P2,andP3location,quantityofdoubleCDsthatfitinaP1,P2,P3locationetc.Youwouldlikelyalsobesettingupcasequantities,andpalletquantitiesofeachCDgroupandquantitiesofcasesandpalletspereachreservestoragelocationgroup.

Ifthissoundssimple,itis…well…sortof.Inrealitymostoperationshaveamuchmorediverseproductmixandwillrequiremuchmoresystemsetup.Andsettingupthephysicalcharacteristicsoftheproductandlocationsisonlypartofthepicture.Youhavesetupenoughsothatthesystemknowswhereaproductcanfitandhowmanywillfitinthatlocation.Younowneedtosetuptheinformationneededtoletthesystemdecideexactlywhichlocationtopickfrom,replenishfrom/to,andputawayto,andinwhatsequencetheseeventsshouldoccur（rememberWMSisallabout“directed”movement）.Youdothisbyassigningspecificlogictothevariouscombinationsofitem/order/quantity/locationinformationthatwilloccur.

BelowIhavelistedsomeofthelogicusedindeterminingactuallocationsandsequences.

LocationSequence.Thisisthesimplestlogic;

yousimplydefineaflowthroughyourwarehouseandassignasequencenumbertoeachlocation.Inorderpickingthisisusedtosequenceyourpickstoflowthroughthewarehouse,inputawaythelogicwouldlookforthefirstlocationinthesequenceinwhichtheproductwouldfit.

ZoneLogic.Bybreakingdownyourstoragelocationsintozonesyoucandirectpicking,putaway,orreplenishmenttoorfromspecificareasofyourwarehouse.Sincezonelogiconlydesignatesanarea,youwillneedtocombinethiswithsomeothertypeoflogictodetermineexactlocationwithinthezone.

FixedLocation.Logicusespredeterminedfixedlocationsperiteminpicking,putaway,andreplenishment.Fixedlocationsaremostoftenusedastheprimarypickinglocationinpiecepickandcase-pickoperations,however,theycanalsobeusedforsecondarystorage.

RandomLocation.Sincecomputerscannotbetrulyrandom（norwouldyouwantthemtobe）thetermrandomlocationisalittlemisleading.Randomlocationsgenerallyrefertoareaswhereproductsarenotstoredindesignatedfixedlocations.Likezonelogic,youwillneedsomeadditionallogictodetermineexactlocations.

First-in-first-out（FIFO）.Directspickingfromtheoldestinventoryfirst.

Last-in-first-out（LIFO）.OppositeofFIFO.Ididn'

tthinktherewereanyrealapplicationsforthislogicuntilavisitortomysitesentanemaildescribingtheiroperationthatdistributesperishablegoodsdomesticallyandoverseas.TheyuseLIFOfortheiroverseascustomers（becauseoflongerin-transittimes）andFIFOfortheirdomesticcustomers.

Pick-to-clear.Logicdirectspickingtothelocationswiththesmallestquantitiesonhand.Thislogicisgreatforspaceutilization.

ReservedLocations.Thisisusedwhenyouwanttopredeterminespecificlocationstoputawaytoorpickfrom.Anapplicationforreservedlocationswouldbecross-docking,whereyoumayspecifycertainquantitiesofaninboundshipmentbemovedtospecificoutboundstaginglocationsordirectlytoanawaitingoutboundtrailer.

MaximizeCube.CubelogicisfoundinmostWMSsystemshoweveritisseldomused.Cubelogicbasicallyusesunitdimensionstocalculatecube（cubicinchesperunit）andthencomparesthistothecubecapacityofthelocationtodeterminehowmuchwillfit.Nowiftheunitsarecapableofbeingstackedintothelocationinamannerthatfillseverycubicinchofspaceinthelocation,cubelogicwillwork.Sincethisrarelyhappensintherealworld,cubelogictendstobeimpractical.

Consolidate.Lookstoseeifthereisalreadyalocationwiththesameproductstoredinitwithavailablecapacity.Mayalsocreateadditionalmovestoconsolidatelikeproductstoredinmultiplelocations.

LotSequence.Used