供应链管理 第三版 Unit8 习题与答案Word格式.docx
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供应链管理 第三版 Unit8 习题与答案Word格式.docx
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True/False
1.Thegoalofaggregateplanningistosatisfydemandinawaythatminimizesprofit.
Answer:
False
Difficulty:
Easy
2.Aggregateplanningisaprocessbywhichacompanydetermineslevelsofcapacity,production,subcontracting,inventory,stockouts,andevenpricingoveraspecifiedtimehorizon.
True
Moderate
3.Aggregateplanningsolvesproblemsinvolvingaggregatedecisionsratherthanstockkeepingunit(SKU)leveldecisions.
4.Traditionally,muchofaggregateplanningisfocusedwithinanenterpriseandmaynotalwaysbeseenasapartofsupplychainmanagement.
5.Aggregateplanningisanimportantsupplychainissuebecause,tobeeffective,itrequiresinputsfromthroughoutthesupplychain,butitsresultshavelittleimpactonthesupplychain.
6.Short-termproductionservesasabroadblueprintforoperationsandestablishestheparameterswithinwhichaggregateplanningdecisionsaremade.
7.Theaggregateplanningproblemisconcernedwithdeterminingtheproductionlevel,inventorylevel,andcapacitylevel(internalandoutsourced)foreachperiodthatmaximizesthefirm’sprofitovertheplanninghorizon.
8.Tocreateanaggregateplan,acompanymustspecifytheplanninghorizonfortheplanandthedurationofeachperiodwithintheplanninghorizon.
9.Aplanninghorizonisusuallybetweenthreeandfiveyears.
10.Apooraggregateplancanresultinimprovedsalesandprofitsiftheavailableinventoryandcapacityareunabletomeetdemand.
11.Apooraggregateplanmayresultinalargeamountofexcessinventoryandcapacity,therebyraisingcosts.
True
12.Theaggregateplannermustmakeatrade-offbetweencapacity,inventory,andbacklogcosts.
13.Anaggregateplanthatincreasesonecosttypicallyresultsintheincreaseoftheothertwo.
14.Thetimeflexiblestrategyiswheretheproductionrateissynchronizedwiththedemandratebyvaryingmachinecapacityorhiringandlayingoffemployeesasthedemandratevaries.
Hard
15.Thetimeflexiblestrategyiswhereworkforce(capacity)iskeptstablebutthenumberofhoursworkedisvariedovertimeinanefforttosynchronizeproductionwithdemand.
16.Themixedstrategyiswhereastablemachinecapacityandworkforcearemaintainedwithaconstantoutputratewithinventorylevelsfluctuatingovertime.
17.Moststrategiesthatanaggregateplanneractuallyusesareincombination,andarereferredtoasmixedstrategies.
18.Ahighlyeffectivetoolforacompanytousewhenittriestomaximizeprofitswhilebeingsubjectedtoaseriesofconstraintsisaggregateprogramming.
19.Toimprovethequalityoftheseaggregateplans,forecasterrorsmustbetakenintoaccountwhenformulatingaggregateplans.
20.Forecastingerrorsaredealtwithinaggregateplansusingeithersafetybacklogorsafetycapacity.
21.Safetyinventoryisdefinedasinventoryheldtosatisfydemandthatishigherthanforecasted.
22.Safetycapacityisdefinedascapacityusedtosatisfydemandthatislowerthanforecasted.
23.Companiesshouldworkwithdownstreampartnerstoproduceforecastsandwithupstreampartnerstodetermineconstraintswhendoingaggregateplanning.
24.Theaggregateplanshouldbeviewedprimarilyasanin-housetoolthatdoesnotneedtobecommunicatedtosupplychainpartners.
25.Giventhatforecastsarealwayswrongtosomedegree,theaggregateplanneedstohavesomeflexibilitybuiltintoitifitistobeuseful.
26.Amanagershouldperformsensitivityanalysisontheinputsintoanaggregateplantochoosethebestsolutionfortherangeofpossibilitiesthatcouldoccur.
27.Asinputsintotheaggregateplanchange,managersdonotneedtomakechangestotheaggregateplan.
28.Ascapacityutilizationincreases,itbecomeslessimportanttoperformaggregateplanning.
MultipleChoice
1.Theprocessbywhichacompanydetermineslevelsofcapacity,production,subcontracting,inventory,
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