供应链管理系统 第三版 Unit8 习题与问题详解.docx

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