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供应链管理课件 第08章学习资料.ppt

发布：2025-04-15约6.02千字共24页下载文档
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Chapter8

AggregatePlanning

intheSupplyChainSupplyChainManagement

(3rdEdition)

8-1

OutlineRoleofaggregateplanninginasupplychainTheaggregateplanningproblemAggregateplanningstrategiesImplementingaggregateplanninginpractice2

RoleofAggregatePlanning

inaSupplyChainCapacityhasacost,leadtimesaregreaterthanzeroAggregateplanning:processbywhichacompanydetermineslevelsofcapacity,production,subcontracting,inventory,stockouts,andpricingoveraspecifiedtimehorizongoalistomaximizeprofitdecisionsmadeataproductfamily(notSKU)leveltimeframeof3to18monthshowcanafirmbestusethefacilitiesithas?3

RoleofAggregatePlanning

inaSupplyChainSpecifyoperationalparametersoverthetimehorizon:productionrateworkforceovertimemachinecapacitylevelsubcontractingbackloginventoryonhandAllsupplychainstagesshouldworktogetheronanaggregateplanthatwilloptimizesupplychainperformance4

TheAggregatePlanningProblemGiventhedemandforecastforeachperiodintheplanninghorizon,determinetheproductionlevel,inventorylevel,andthecapacitylevelforeachperiodthatmaximizesthefirm’s(supplychain’s)profitovertheplanninghorizonSpecifytheplanninghorizon(typically3-18months)SpecifythedurationofeachperiodSpecifykeyinformationrequiredtodevelopanaggregateplan5

InformationNeededfor

anAggregatePlanDemandforecastineachperiodProductioncostslaborcosts,regulartime($/hr)andovertime($/hr)subcontractingcosts($/hror$/unit)costofchangingcapacity:hiringorlayoff($/worker)andcostofaddingorreducingmachinecapacity($/machine)Labor/machinehoursrequiredperunitInventoryholdingcost($/unit/period)Stockoutorbacklogcost($/unit/period)Constraints:limitsonovertime,layoffs,capitalavailable,stockoutsandbacklogs6

OutputsofAggregatePlanProductionquantityfromregulartime,overtime,andsubcontractedtime:usedtodeterminenumberofworkersa

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