Wilson formula. Qhov zoo tshaj plaws txiav txim loj: txhais, qauv thiab xam piv txwv

Cov txheej txheem:

Wilson formula. Qhov zoo tshaj plaws txiav txim loj: txhais, qauv thiab xam piv txwv
Wilson formula. Qhov zoo tshaj plaws txiav txim loj: txhais, qauv thiab xam piv txwv

Video: Wilson formula. Qhov zoo tshaj plaws txiav txim loj: txhais, qauv thiab xam piv txwv

Video: Wilson formula. Qhov zoo tshaj plaws txiav txim loj: txhais, qauv thiab xam piv txwv
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Qee zaum cov tuam txhab lag luam khaws cov khoom seem rau cov haujlwm nrov tshaj plaws. Txawm li cas los xij, nws tsis tuaj yeem nce cov khoom lag luam tsis tas li. Nws yog ib qho tsim nyog los txiav txim siab qhov kev txiav txim siab qhov ntau thiab tsawg. Rau lub hom phiaj no, Wilson formula yog siv.

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Cov khoom lag luam hauv warehouses muab faib ua ntau lawm thiab khoom muag. Thawj qeb suav nrog cov khoom lag luam uas tau npaj rau kev tsim khoom. Lawv lub hom phiaj yog los xyuas kom meej cov txheej txheem ntau lawm tsis cuam tshuam. Cov khoom lag luam yog cov khoom lag luam nyob hauv warehouses thiab nyob rau hauv kev thauj mus los rau wholesalers thiab retailers.

wilson formula
wilson formula

cov khoom lag luam tam sim no yog tsim los ua kom muaj kev lag luam zoo lossis kev tsim khoom ntawm kev xa khoom. Kev ruaj ntseg cov khoom lag luam tau sau rau tib lub hom phiaj, tab sis nyob rau hauv rooj plaub ntawm qhov xwm txheej tsis tau pom dua: kev hloov pauv hauv cov khoom siv, kev xav tau nce ntxiv, kev ncua sij hawm. Hauv kev lag luam ib txwm muaj, tus nqi ntawm cov khoom ruaj ntseg tsis hloov pauv.

Vim li caskhoom?

Cov khoom lag luam hauv kev lag luam kom ntseeg tau tias kev ua haujlwm ruaj khov ntawm qhov system. Tab sis txoj kev no yog kim heev. Raws li cov peev txheej txawv teb chaws, nws raug nqi 25 xees ib xyoos los khaws ib chav tsev ntawm cov khoom tsim nyog 1 duas. Cov kws lag luam hauv tsev muab cov duab zoo sib xws - 20-30% ntawm tus nqi ntawm cov khoom. Yog tias ib lub tuam txhab muaj cov khoom muag muaj nqis 100 lab rubles, ces nws siv 25 lab ntxiv los tswj lawv.

Risks

Cia muaj ntau qhov tsis zoo. Nov yog:

  • kev khwv nyiaj txiag;
  • ncua kev txhim kho cov txheej txheem, raws li lub koom haum ua ntej liquidates stocks thiab ces yuav cov khoom tshiab;
  • kev cais tawm ntawm kev xa khoom hauv kev faib khoom;
  • nqi siv rau kev saib xyuas thaj chaw tshwj xeeb thiab cov nyiaj ua haujlwm ntawm cov neeg tuav khoom;
  • pheej hmoo poob vim khoom puas tsuaj lossis tub sab.

Raws li tus nqi khaws cia ntau npaum li cas rau lub koom haum tshwm sim, tag nrho cov txheej txheem tswj cov khoom tau txiav txim siab. Wilson Formula pab koj xam seb koj yuav tsum tau txiav cov khoom seem npaum li cas. Txawm hais tias muaj kev pheej hmoo koom nrog hauv kev khaws cov khoom lag luam, cov neeg lag luam raug yuam kom coj lawv, vim tias qhov tsis muaj cov khoom lag luam ua rau poob nyiaj.

Wilson formula pom kev txiav txim loj
Wilson formula pom kev txiav txim loj

Qhov txiaj ntsig ntawm kev suav tau siv Wilson qauv, cov qauv uas tau nthuav tawm ua ntej, yuav tsum muab piv nrog lwm cov nuj nqis. Tus nqi ntawm kev yuav khoom txhua yam yuav tsum tsawg dua tus nqi khaws cia. Tsuas yog tom qab ntawd nws ua rau muaj kev nkag siab zoo rau khaws cia.

Teeb meemtswj

  • Qhov loj ntawm qhov kev txiav txim yog cuam tshuam los ntawm ntau yam: nws qhov loj me, kev noj tsis sib xws, kev deb ntawm tus neeg xa khoom, kev xa khoom.
  • Cov Tshuag tuaj yeem tsim rau ob qho khoom xa tuaj tam sim no thiab muag raws caij nyoog.
  • Ntau tus lej ntawm cov khoom lag luam tswj hwm: los ntawm lub sijhawm mus rau qhov txuas ntxiv.
  • Nrog rau qhov nthuav dav ntawm qhov ntau, qhov kev pheej hmoo ntawm kev suav cov khoom xa tuaj zoo nce ntxiv. Wilson tus qauv tsis suav nrog qhov kev pheej hmoo no.
  • Ntau lub sij hawm ua cov khoom lag luam hauv cheeb tsam nrog cov neeg ua haujlwm pheej yig.

Tsev

Qhov kev txiav txim siab kom muaj nuj nqis (Wilson's formula) yog tus qauv uas tuaj yeem siv los txiav txim siab txog qhov kev txiav txim siab nyiaj txiag ntawm tus nqi tsawg kawg nkaus. Nws siv raws li hauv qab no:

  • paub meej cov khoom xav tau thiab lub sijhawm xa khoom.
  • Tau txais cov khoom tam sim.
  • Tsis muaj khoom muag thiab txo nqi ntau.
kev tswj cov khoom muag wilson formula
kev tswj cov khoom muag wilson formula

Wilson formula

Optimal order quantity TS=PR + CR / Q + PFQ / 2, where

  • Q - xaj loj;
  • C - nqi tso kawm;
  • R - txhua xyoo thov;
  • P - tus nqi ntawm kev yuav khoom 1 daim;
  • F - tus nqi khaws cia (feem ntau 10-15%).
  • PF - tus nqi khaws khoom rau lub xyoo.

rau leej twg?

Wilson's formula yog tsim los rau cov lag luam loj. Nws tsis tuaj yeem siv rau hauv daim ntawv no hauv cov tuam txhab lag luam niaj hnub no. Ua ntej tshaj plaws, nws yuav tsum tau nthuav dav kom coj mus rau hauv tus accountnuj nqis nqi thiab ntau yam khoom. Tsuas yog tom qab ntawd koj tuaj yeem siv Wilson cov mis rau ntawm pawg hnyav (ABC-kev tshuaj xyuas) thiab cov khoom ruaj khov (XYZ-kev tshuaj xyuas).

wilson qauv formula
wilson qauv formula

Lwm yam ntsuas

Txhawm tswj cov khoom muag, koj tuaj yeem siv tsis yog Wilson formula xwb. Hauv kev xav txog kev lag luam, muaj ntau tus lej ntawm lwm cov coefficients uas kho cov txiaj ntsig ntawm kev suav.

Cov khoom xa tuaj qhia tias pes tsawg zaus cov khoom lag luam dhau los ntawm txhua qhov kev muag khoom hauv lub sijhawm teev tseg. Siv qhov ntsuas no, koj tuaj yeem suav qhov ua tau kom tau txais txiaj ntsig tag nrho los ntawm ib ruble nqis peev hauv kev yuav khoom:

Oz=Tus nqi ntawm cov khoom yuav khoom ib hlis (quarter, xyoo) / Nruab nrab cov khoom lag luam rau tib lub sijhawm.

Thaum xam qhov ntsuas, cov khoom yuav khoom rau ib qho kev txiav txim tshwj xeeb tsis suav nrog.

Muaj Tshuag - pes tsawg hnub lub koom haum cov khoom tam sim no yuav kav ntev yog tias cov khoom siv dheev nres:

Safety=Cov Khoom Muag Tus Nqi x Hnub / Cov Khoom Muag Nruab Nrab

Qhia tawm ntawm cov khoom muag hauv cov khoom tam sim no thiab tsis yog tam sim no:

UD=Tus nqi khoom muag / OA (IA)

wilson formula logistics
wilson formula logistics

ABC tsom xam

Txoj kev suav no txiav txim siab lub tuam txhab cov peev txheej tseem ceeb tshaj plaws. Nws tuaj yeem siv rau txhua hom ntawm cov koom haum. Nws yog tsim raws li lub hauv paus ntsiab lus Pareo: 80% ntawm cov turnover muab 20% ntawm cov khoom. Kev tswj kom ntseeg tau ntawm qhov no ntawm cov peev txheej (reserves) yuav ua rau nws muaj peev xwm tswj tau qhov system tag nrho.

Raws li ib feem ntawm ABC-kev tshuaj ntsuam, cov khoom muag tau muab faib ua pebPawg:

  • A - qhov txiaj ntsig tshaj plaws: 20% ntawm cov khoom nqa nqa 80% ntawm kev xaj.
  • B - nruab nrab: 30% ntawm cov khoom nqa nqa 15% ntawm kev muag khoom.
  • C - qhov tsawg tshaj plaws muaj nqis: 50% ntawm cov khoom nqa nqa 5% ntawm kev txiav txim.

ABC-kev tshuaj xyuas yog qeb los ntawm qhov ntsuas. Ntxiv mus, koj tuaj yeem txheeb tsis tau cov khoom lag luam nkaus xwb, tab sis kuj yog cov neeg siv khoom, lub sijhawm ntawm kev muag khoom, thiab lwm yam kev txheeb xyuas tseem ceeb. Lub hom phiaj yog pab pawg khoom raws li qib ntawm lawv cov kev cuam tshuam ntawm qhov kawg tshwm sim. Thaum lub sij hawm tsom xam, ib daim duab kuj tsim, uas yog hu ua Pareto nkhaus (Lorentz los yog ABC nkhaus). Tib txoj kev tuaj yeem siv los ntsuas cov neeg siv khoom los ntawm tus lej xaj hauv kev xa khoom. Wilson tus qauv tsis haum rau lub hom phiaj no.

Cov khoom tuaj yeem muab ua pawg raws li tus nqi ntsuas. Hauv qhov no, qhov sib faib ntawm cov khoom thiab tag nrho cov txiaj ntsig tau ntxiv (piv txwv li, yog tias cov khoom nqa 50% ntawm kev txiav txim, ces tus nqi no yog ob npaug). Tus nqi ntawm cov sums yog nyob rau hauv thaj tsam ntawm 0% mus rau 200%. Cov pab pawg raug tsim raws li cov hauv qab no: A - 100%, B - 45%, C - tus so.

pom kev xa khoom ntau Wilson's formula
pom kev xa khoom ntau Wilson's formula

XYZ tsom xam

Lwm txoj hauv kev los txiav txim siab qhov kev txiav txim siab zoo yog suav cov coefficient ntawm kev hloov pauv (XYZ tsom xam). Nws qhia txog kev sib kis ntawm tus nqi txheeb ze rau qhov nruab nrab (kev txiav txim ntim, qib muag, tus naj npawb ntawm cov neeg siv khoom, thiab lwm yam). Nrog nws, koj tuaj yeem tshem tawm qhov cuam tshuam ntawm lub caij nyoog yam ntawm qhov ntsuas kawg. Cov txheej txheem suav siv tus qauv sib txawv feem pua ntawm cov qauv.

Cov ntaub ntawv muaj nyob hauv qab noway:

  • X - qhov hloov me tshaj plaws ntawm tus nqi nruab nrab (0-10%);
  • U - hloov pauv ntawm qhov muaj nqis los ntawm 10-25% ntawm qhov nruab nrab;
  • Z - hloov qhov muaj nqis ntau dua 25%.

Thawj ob pawg ntawm cov ntsuas muaj qhov cuam tshuam loj tshaj plaws ntawm qhov kawg tshwm sim.

Yog li, ua ntej siv Wilson mis, koj yuav tsum txiav txim siab cov khoom tseem ceeb tshaj plaws rau lub koom haum, thiab tom qab ntawd xam cov Tshuag txwv.

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