供应链管理系统 第三版 Unit8 习题与问题详解.docx
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供应链管理系统 第三版 Unit8 习题与问题详解.docx
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供应链管理系统第三版Unit8习题与问题详解
Chapter8
AggregatePlanningintheSupplyChain
True/False
1.Thegoalofaggregateplanningistosatisfydemandinawaythatminimizesprofit.
Answer:
False
Difficulty:
Easy
2.Aggregateplanningisaprocessbywhichacompanydetermineslevelsofcapacity,production,subcontracting,inventory,stockouts,andevenpricingoveraspecifiedtimehorizon.
Answer:
True
Difficulty:
Moderate
3.Aggregateplanningsolvesproblemsinvolvingaggregatedecisionsratherthanstockkeepingunit(SKU)leveldecisions.
Answer:
True
Difficulty:
Easy
4.Traditionally,muchofaggregateplanningisfocusedwithinanenterpriseandmaynotalwaysbeseenasapartofsupplychainmanagement.
Answer:
True
Difficulty:
Moderate
5.Aggregateplanningisanimportantsupplychainissuebecause,tobeeffective,itrequiresinputsfromthroughoutthesupplychain,butitsresultshavelittleimpactonthesupplychain.
Answer:
False
Difficulty:
Moderate
6.Short-termproductionservesasabroadblueprintforoperationsandestablishestheparameterswithinwhichaggregateplanningdecisionsaremade.
Answer:
False
Difficulty:
Easy
7.Theaggregateplanningproblemisconcernedwithdeterminingtheproductionlevel,inventorylevel,andcapacitylevel(internalandoutsourced)foreachperiodthatmaximizesthefirm’sprofitovertheplanninghorizon.
Answer:
True
Difficulty:
Moderate
8.Tocreateanaggregateplan,acompanymustspecifytheplanninghorizonfortheplanandthedurationofeachperiodwithintheplanninghorizon.
Answer:
True
Difficulty:
Easy
9.Aplanninghorizonisusuallybetweenthreeandfiveyears.
Answer:
False
Difficulty:
Moderate
10.Apooraggregateplancanresultinimprovedsalesandprofitsiftheavailableinventoryandcapacityareunabletomeetdemand.
Answer:
False
Difficulty:
Easy
11.Apooraggregateplanmayresultinalargeamountofexcessinventoryandcapacity,therebyraisingcosts.
Answer:
True
Difficulty:
Moderate
12.Theaggregateplannermustmakeatrade-offbetweencapacity,inventory,andbacklogcosts.
Answer:
True
Difficulty:
Moderate
13.Anaggregateplanthatincreasesonecosttypicallyresultsintheincreaseoftheothertwo.
Answer:
False
Difficulty:
Moderate
14.Thetimeflexiblestrategyiswheretheproductionrateissynchronizedwiththedemandratebyvaryingmachinecapacityorhiringandlayingoffemployeesasthedemandratevaries.
Answer:
False
Difficulty:
Hard
15.Thetimeflexiblestrategyiswhereworkforce(capacity)iskeptstablebutthenumberofhoursworkedisvariedovertimeinanefforttosynchronizeproductionwithdemand.
Answer:
True
Difficulty:
Moderate
16.Themixedstrategyiswhereastablemachinecapacityandworkforcearemaintainedwithaconstantoutputratewithinventorylevelsfluctuatingovertime.
Answer:
False
Difficulty:
Hard
17.Moststrategiesthatanaggregateplanneractuallyusesareincombination,andarereferredtoasmixedstrategies.
Answer:
True
Difficulty:
Easy
18.Ahighlyeffectivetoolforacompanytousewhenittriestomaximizeprofitswhilebeingsubjectedtoaseriesofconstraintsisaggregateprogramming.
Answer:
False
Difficulty:
Moderate
19.Toimprovethequalityoftheseaggregateplans,forecasterrorsmustbetakenintoaccountwhenformulatingaggregateplans.
Answer:
True
Difficulty:
Moderate
20.Forecastingerrorsaredealtwithinaggregateplansusingeithersafetybacklogorsafetycapacity.
Answer:
False
Difficulty:
Moderate
21.Safetyinventoryisdefinedasinventoryheldtosatisfydemandthatishigherthanforecasted.
Answer:
True
Difficulty:
Easy
22.Safetycapacityisdefinedascapacityusedtosatisfydemandthatislowerthanforecasted.
Answer:
False
Difficulty:
Easy
23.Companiesshouldworkwithdownstreampartnerstoproduceforecastsandwithupstreampartnerstodetermineconstraintswhendoingaggregateplanning.
Answer:
True
Difficulty:
Easy
24.Theaggregateplanshouldbeviewedprimarilyasanin-housetoolthatdoesnotneedtobecommunicatedtosupplychainpartners.
Answer:
False
Difficulty:
Easy
25.Giventhatforecastsarealwayswrongtosomedegree,theaggregateplanneedstohavesomeflexibilitybuiltintoitifitistobeuseful.
Answer:
True
Difficulty:
Moderate
26.Amanagershouldperformsensitivityanalysisontheinputsintoanaggregateplantochoosethebestsolutionfortherangeofpossibilitiesthatcouldoccur.
Answer:
True
Difficulty:
Moderate
27.Asinputsintotheaggregateplanchange,managersdonotneedtomakechangestotheaggregateplan.
Answer:
False
Difficulty:
Easy
28.Ascapacityutilizationincreases,itbecomeslessimportanttoperformaggregateplanning.
Answer:
False
Difficulty:
Moderate
MultipleChoice
1.Theprocessbywhichacompanydetermineslevelsofcapacity,production,subcontracting,inventory,stockouts,andevenpricingoveraspecifiedtimehorizonis
a.aggregateplanning.
b.detailplanning.
c.inventoryplanning.
d.salesplanning.
e.alloftheabove
Answer:
a
Difficulty:
Moderate
2.Thegoalofaggregateplanningisto
a.dissatisfycustomersinawaythatmaximizesprofit.
b.dissatisfycustomersinawaythatminimizesprofit.
c.satisfydemandinawaythatmaximizesprofit.
d.satisfydemandinawaythatminimizesprofit.
e.noneoftheabove
Answer:
c
Difficulty:
Easy
3.Aggregateplanningsolvesproblemsinvolving
a.aggregatedecisionsandstockkeepingunit(SKU)leveldecisions.
b.aggregatedecisionsorstockkeepingunit(SKU)leveldecisions.
c.aggregatedecisionsratherthanstockkeepingunit(SKU)leveldecisions.
d.stockkeepingunit(SKU)leveldecisionsratherthanaggregatedecisions.
e.bandconly
Answer:
c
Difficulty:
Easy
4.Aggregateplanning,tobeeffective,requiresinputsfrom
a.allcustomers.
b.alldepartments.
c.allsuppliers.
d.throughoutthesupplychain.
e.throughoutthecompany.
Answer:
d
Difficulty:
Moderate
5.Muchofaggregateplanninghastraditionallybeenfocused
a.onshort-termproductionscheduling.
b.oncustomerrelationshipmanagement.
c.withinanenterprise.
d.beyondenterpriseboundaries.
e.alloftheabove
Answer:
c
Difficulty:
Moderate
6.Whichofthefollowingarenotoperationalparameterstheaggregateplannerisconcernedwith?
a.productionrate
b.workforce
c.overtime
d.backorders
e.inventoryonhand
Answer:
d
Difficulty:
Moderate
7.Theoperationalparameterconcernedwiththenumberofunitscompletedperunittime(suchasperweekorpermonth)is
a.productionrate.
b.workforce.
c.overtime.
d.backlog.
e.inventoryonhand.
Answer:
a
Difficulty:
Easy
8.Theoperationalparameterconcernedwiththenumberofworkers/unitsofcapacityneededforproductionis
a.productionrate.
b.workforce.
c.overtime.
d.backlog.
e.inventoryonhand.
Answer:
b
Difficulty:
Easy
9.Theoperationalparameterconcernedwiththeamountofovertimeproductionplannedis
a.productionrate.
b.workforce.
c.overtime.
d.backlog.
e.inventoryonhand.
Answer:
c
Difficulty:
Easy
10.Theoperationalparameterconcernedwithdemandnotsatisfiedintheperiodinwhichitarises,butcarriedovertofutureperiodsis
a.productionrate.
b.workforce.
c.overtime.
d.backlog.
e.inventoryonhand.
Answer:
d
Difficulty:
Easy
11.Theoperationalparameterconcernedwiththeplannedinventorycarriedoverthevariousperiodsintheplanninghorizonis
a.productionrate.
b.workforce.
c.overtime.
d.backlog.
e.inventoryonhand.
Answer:
e
Difficulty:
Easy
12.Theoperationalparameterconcernedwiththenumberofunitsofmachinecapacityneededforproductionis
a.machinecapacitylevel.
b.subcontracting.
c.overtime.
d.backlog.
e.inventoryonhand.
Answer:
a
Difficulty:
Easy
13.Theoperationalparameterconcernedwiththesubcontractedcapacityrequiredovertheplanninghorizonis
a.machinecapacitylevel.
b.subcontracting.
c.overtime.
d.backlog.
e.inventoryonhand.
Answer:
c
Difficulty:
Easy
14.Theaggregateplan
a.servesasabroadblueprintforoperations.
b.establishestheparameterswithinwhichshort-termproductionanddistributiondecisionsaremade.
c.allowsthesupplychaintoaltercapacityallocationsandchangesupplycontracts.
d.alloftheabove
e.bandconly
Answer:
d
Difficulty:
Moderate
15.Aggregateplanningisconcernedwithdetermining
a.theproductionlevel,saleslevel,andcapacityforeachperiod.
b.thedemandlevel,inventorylevel,andcapacityforeachperiod.
c.theproductionlevel,inventorylevel,andcapacityforeachperiod.
d.theproductionlevel,staffinglevel,andcapacityforeachperiod.
e.noneoftheabove
Answer:
c
Difficulty:
Moderate
16.Tocreateanaggregateplan,acompanymustspecify
a.theplanninghorizonfortheplan.
b.thedurationofeachperiodwithintheplanninghorizon.
c.keyinformationrequired.
d.alloftheabove
e.aandbonly
Answer:
d
Difficulty:
Moderate
17.Theplanninghorizonis
a.thetimeperiodoverwhichtheaggregateplanistoproduceasolution.
b.thedurationofeachtimeperiodintheaggregateplan.
c.thelengthoftimerequiredtoproducetheaggregateplan.
d.thesolutiontotheaggregateplan.
e.noneoftheabove
Answer:
a
Difficulty:
Easy
18.Thelengthoftheplanninghorizonisusuallybetween
a.oneandthreemonths.
b.threeandeighteenmonths.
c.oneandthreeyears.
d.threeandfiveyears.
e.noneoftheabove
Answer:
b
Difficulty:
Moderate
19.Whichofthefollowingisnotinformationneededbytheaggregateplanner?
a.demandforecastforeachperiodintheplanninghorizon
b.productioncosts
c.laborcosts
d.costofsubcontractingproduction
e.costofchanging
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