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SMARTScenarioManagerTutorialTheScenarioManagerisoneofthemostpowerfultoolstobeimplementedintoamodel.
The
intentionoftheScenarioManageristocombinenumeroussensitivitiesintoasinglescenario,and
derivekey
outputs
relating
to
each
scenario
simultaneously.
NotethatthisdoesnotrelatetotheinbuiltScenarioManagertoolinExcel.whichissignificantly
lessflexiblethanaSMARTscenariomanager.
EstablishingaScenarioManagerinExcel
ThereareseveralcoreelementsoftheScenarioManager.
CaseSelectorThefirstkeyelementoftheScenarioManagerisaswitchtoallowuserstochoosewhatscenariois
currentlyactiveinthemodel.
Themodelwillactivelydisplaycalculationsrelatingtotheselected
scenario.
CaseNamesCasesareconventionallylistedacrossfromthelefttotherighthandside.
Thisallowsanyadditional
scenariostobeestablishedbysimplyaddinganextracolumntotheScenarioManager.
Sensitivities
Keymodeldriversthataretobeadjustedaretobelisteddownthepage.
Theseshouldbegrouped
intocategoriestomakesearchingforsensitivityinputsmoreefficient.
Sensitivitiescanbeestablishedusinganumberofcommonlyusedtypes:
Selection:Sensitivitiescanbeadjustedbyuseofafixednumberorstatement(usuallypoweredbyaDataValidationlist).
ThiswillfeedtheinputvaluedirectlyintotheInputs
sheet.
Thisisoftenusedforitemsthatdrivelists(e.g.Base,HighorLowcaseprofiles),as
wellasitemsthatarenotclearonthedirectionofapositiveornegativemovement(e.g.
foreignexchangerates).
Scaledpercentage:Ascaledpercentagewillincreaseordecreaseanumberbyaproportionoftheinitialsize.
Forexample,ifthebasenumberis500,a10%increasewillresultina
valueof
550.
Likewise,
if
the
base
number
is
5.00%,
a10%
increase
will
result
in
avalue
of
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5.50%.
Thesesortsofsensitivitiesarecommonlyusedashighlevelsensitivitiesfordrivers
suchasprice,volume,costandotheroperationalparameters.
Linear:Alinearmovementwillincreaseordecreaseanumberbythevaluelisted.
Forexample,ifthebasenumberis5.00%,a10%increasewillresultinavalueof15.00%.
Thisis
morecommonlyusedfordriverssuchasinflationandinterestrates,aswellastiming
variablesrelatingtooperationalperiodsandconstructiondelays.
ScenarioTable
ThescenariotableisthecoreoutputoftheScenarioManager.
Inthetable,weclearlyestablish
whatthekeyoutputsofthemodelare,andutiliseaDataTabletoquicklygeneratevaluesforeach
ofthescenariosthatwearerunning.
