Rolling Presentation Pf3

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1Hybrid Vehicle Projects

2006 IARC

Decision Support Tool (DST)

What is theDecision Support

Tool?


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2006 IARC


Who is it applicable to?

Vehicle Manu facturers

SuppliersLocal/NationalGovernment

Commercia lUsers

Mem bers ofthe publ ic


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2006 IARC


How does itwork?


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How does it work? STEP 1 DECISION QUESTIONStar t by def in ing the decis ion to besupported .

Decis ions categorised by decis ion m akertype and d ecis ion typ e to a id se lect ion .

EXAMPLEIm a private consumer PUBLIC

Im making a decision relating to vehicle PURCHASE

Decision I need to decide

which vehicle to purchase from a set of identifiedvehicles?


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2006 IARC


How does it work? STEP 2 VALUE PROFILEIdent i fy wh at i s imp ortant to the decis ionmaker their valu e set .

Nest ing a l lows for level of d etai l to ref lectkno wledge o f user.

EXAMPLE Vehicle Purc haseSpecify im portanc e on 0 (lowest) to 10 (high est)imp ortance for set of factors relevant to purch asedecisions.

Both q uan t i f iab le aspects such as purchase cost andsub jective factors such as aesthetics (appearance) canbe included.



2006 IARC


How does it work? STEP 3 VALUE PROFILE(2)Identify how the decision makerspreference v ar ies wi th var iat ions in the

factors on w hich the decis ion is based .

EXAMPLE Purchase CostWhen do es a difference in price between 2 vehiclesimp act your preference for a vehicle?

e .g . i f you are consider ing between 2 20k veh ic les ,does 100 d i fference in p r ice in f luence your decis ion , o rare you indifferent to suc h a small price difference?



2006 IARC


How does it work? STEP 4 DECISION SPECIFICATIONDefine the scenario in w hich th e decis ion isbeing m ade i.e . inform at ion w hich p rovides

con text for the decis ion .

EXAMPLE Vehicle Purc haseInformat ion captured about how and where thevehicle i s us ed.

road types mo torw ay, urban etc. d r iv ing s ty le across cong est ion ch arg ing zone? annual m ileage



2006 IARC


How does it work? STEP 4 DECISION SPEC N (2)Specify each of the opt ions b eingcon sidered and evaluated , both factual and

sub ject ive imp ress ions .

EXAMPLE Vehicle Purc haseInformat ion captured about the vehicles .

Factual w eight, drag c o-efficient etc. Subjective aesthetics, im age etc.

Data, such as fuel econo my mig ht be entered directly, orgenerated th roug h s imulat ion .



2006 IARC


How does it work? STEP 5 DATA PROCESSINGInpu t d a ta i s now processed us ingPROMETHEE m ethod olo gy.

Migh t inc lude s im ula tions , cos t m odelcalcu lat ions etc. to g enerate data.

EXAMPLE Vehicle Purc haseVehic le sim ulation - WARPSTAR returns fueleconom y for a dr ive cycle generated based onusers u se profi le .

Figure more representat ive of real -world econom y. g/km



2006 IARC


How does it work? STEP 6 RESULTSOptions ranked. This m ight includ econ t inuou s op t ions such as de termin ing

op t imu m pr ice .

Confidence in resul ts a lso ind icated .

EXAMPLE Vehicle Purc haseVehicles ranked accord ing to preference ofdecis ion maker

Based on speci f ied value set and speci f icat iondata.

Vehicle SatisfactionIndex

Toyota Prius 5.45

Honda IMA 3.2

Jaguar XType

4.5



2006 IARC


How does it work? STEP 7 DESIGN BY ITERATIONWhat if ques t ion s analysed . Too l cou ld beused recurs ively bu t s low.

Autom ation th roug h inpu ts as variab les o rtargets .

EXAMPLE Vehicle Purc haseWhat i f som eone else also dr ives the vehicle?

What i f I do less /more m i les per annum ?

What if . ?



2006 IARC


What are thebenefits of

using theDST?



2006 IARC


What are the benefits of using the DST?Improved decision making through

consideration of factors in a structured format. ability to test sensitivity to changes. assistance in generation of accurate data e.g. link

to simulation. capture of different perspectives across business

in a formal, non-technical manner.



2006 IARC


What are the benefits of using the DST?Leads to :

Accelerated decision taking through clear process andidentification of required information.

Reduced changes in programme. Easy-to-review reasoning behind decisions taken as auto

captured and documented. Easy to see the effects of changes during programme if

assumptions used differ from reality.

Business Benefits : Reduced time to market Reduced rework

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