3360 unit 10.4 2014-i-01
TRANSCRIPT
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ENGR 3360U Winter 2014
Unit 10-4
Quantitative Assessment of Risk
Dr. J. Michael Bennett, P. Eng., PMP,
UOIT,
Version 2014-I-01
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$%an#e Re!or&
2014-'-01 'nitia( $reation
2014-'-0110-2 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
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10+4 Quantitative Risk Ana(/sis
10+4+1 'nuts
+1 EEP
+2 Proe!t !oe tatement
+3 Risk "ana#ement P(an
+4 Risk Re#ister
+ P"P
10+4+2 oo(s an& e!%niues
+1 *ata Gat%erin# 5 Reresentation e!%niues
+2 Quantitative Risk Ana(/sis 5 "o&e(in#10+4+3 ututs
+1 Risk Re#ister U&ates
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ur Risk Para&i#m
$ontro(
'&entif/
Q5Q Ana(/7eP(an
ra!k
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Quantitative
8ere 9e ut num:ers on t%e risks
8ere :e *ra#ons
,ust :e!ause t%ere is a num:er. &oes not make ittrue;
Not ever/t%in# t%at matters. !an :e measure&+
Not ever/t%in# t%at is measure&. matters
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%e '&ea( is to
Quantif/ t%e ossi:(e out!ome
Assess t%e ro:a:i(it/ of a!%ievin# o:e!tives
Use t%e numeri! rankin# to 9at!% t%e %i#%est'&entif/ rea(isti! !osts. s!%e&u(es. s!oe tar#ets
in t%e fa!e of t%e roe!t risks
*etermine t%e :est P" &e!ision 9%en somerisks rear t%eir u#(/ %ea&s
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+1 *ata Gat%erin# 5 Reresentation ek=s
'ntervie9in#
Pro:a:i(it/ &istri:utions
E>ert ument
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Ran#e of $ost Estimates
WE(ement
@o9 @ike(/ 8i#%
*esi#n 4 6 10
ui(& 16 20 3
est 11 1 23
ota(Proe!t
41
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Pro:a:i(it/ *istri:utions
0.25 0.50 0.75 1.000.00 0.25 0.50 0.75 1.000.00
Likely Likely
Beta Triangular
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+2 Quantitative Risk Ana(/sis 5 "o&e(in#
ensitivit/ ana(/sis
E>e!te& monetar/ va(ue
*e!ision tree ana(/sis"o&e(in# an& simu(ation
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Risk Re#ister U&ates
Pro:a:i(isti! ana(/sis of roe!t
Pro:a:i(it/ of a!%ievin# !ost an& time
o:e!tivesPrioriti7e& (ist of uantifie& risks
ren&s in uantitative risk ana(/sis resu(ts
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Ran#e of Estimates
B We !an=t forete(( re!ise(/ t%e !osts an& :enefits for future /ears+
B 't=s more rea(isti! to &es!ri:e a ran#e of ossi:(e va(ues+
– Cor e>am(e a ran#e !ou(& in!(u&eDB timisti!=. most (ike(/=. an& essimisti!=
estimatesB %e ana(/sis !ou(& t%en &etermine 9%et%er t%e
&e!ision is sensitive to t%e ran#e of va(ues+
2014-'-0110-12 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
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%e Ru(e of i>
E>am(es. %o9 (on# &oes it take /ou to
&rive to U'F ou (ive in !ar:eria+
2014-'-01 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 336010-13
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Pro:a:i(it/
B Pro:a:i(it/ of f(iin# a !oinD – 8ea& H0IJ. ai( H0IJ
B %is is t%e (on# ran#e freuen!/ an& t%e sin#(e tria((ike(i%oo&+
B Pro:a:i(ities !an a(so :e :ase& on ast &ata. e>ert uement. or some !om:ination of :ot%+
B "at%emati!a((/D – et9een 0 an& 1
0 (can never happen) – 0% 1 (will always happen) – 100% 0.5 (hal the ti!e"as in the a#$ve ea!ple $ lipping a c$in"
50%)
2014-'-0110-14 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
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Pro:a:i(it/. !ont=&+
B %e sum of a(( ro:a:i(ities must eua( 1+ – 8ea& H0+J. ai( H0+J
0 KL Pro:a:i(it/ KL 1
∑PHout!ome J L 1. 9%ere t%ere are M out!omes
B As oose& to (ar#e &istri:utions. it is more!ommon in e!onomi! ana(/sis to use 2 to
&is!rete ossi:i(ities+B %is is :e!auseD
B Ea!% out!ome reuires more ana(/sis+
B
E>ert uement s%ou(& :e (imite& for a!!ura!/+2014-'-0110-1 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
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,oint Pro:a:i(it/ *istri:ution
B %e ro&u!t of t9o in&een&ent events
PHA an& J L PHAJ > PHJ
B E>am(eD C(iin# a !oin an& ro((in# a &ie – urnin# u a %ea& an& ro((in# a 4B > 1O6 L 1O12 oint ro:a:i(it/
B ,oint ro:a:i(ities !an in!rease t%e num:erof ossi:i(ities an& :e!ome arit%meti!a((/
:ur&ensome+
2014-'-0110-16 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
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E>e!te& a(ue
B %e E>e!te& a(ueD – Ea!% out!ome is 9ei#%te& :/ its ro:a:i(it/
an& t%e resu(ts are summe&D &pecte' value utc$!e* +(*) , utc$!eB +(B). . . .
– %is is N a sim(e avera#e+
2014-'-0110-1< )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
10
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Un t 10 – Pro e!t R s "ana#ement
E!onomi! *e!ision rees
A usefu( too( in &e!i&in# a(ternatives
2014-'-01 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 336010-1?
U 10 P R "
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Un t 10 – Pro e!t R s "ana#ement
*e!ision rees
B *e!ision rees !an :e !reate& for !om(e>&e!ision makin#D
– /m:o(sD
-ecisi$n $'e /hance $'e
/h$$se a path
+rune
/1
/2/
+1+2
+
/hance event
with pr$# +i
2014-'-0110-1 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
U 10 P R "
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*e!ision rees. !ont=&+
2014-'-0110-20 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 3360
U t 10 P t R " t
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Pro:(em
W%at &e!ision s%ou(& :e ma&e on t%e
!%oi!e of a ne9 ro&u!t as ust &es!ri:e&F
"ARR is 10I+ 'f t%e roe!t is terminate&
after 1 /ear. sa(va#e is 0.000+ 'f it is use&
to ? /ears. 0+
2014-'-01 )*r+ ,+"+ ennett. P+En#+. P"P ENGR 336010-21
U t 10 P t R " t
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o(ution
No&e < PW L 0000
No&e ? PW is 100000HPOA. 10I.
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No&e PW L -?00M 600MHPFA. 10I.
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*e!ision rees. !ont=&+
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Un t 10 Pro e!t R s "ana#ement
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Cinis%
PW No&e 4 L H100M0MJHPOC. 10I.
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Cina( o(ution
+3 $'e 4
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Un t 10 Pro e!t R s "ana#ement
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Quantif/in# Risks 9it% Pro:a:i(it/
ev L @ike(i%oo&i > 'ma!ti
Pro:(em is t%at it is %ar& to uantif/ t%ese
Cor e>am(e. 9%at is t%e (ike(i%oo& of as%i %ittin# an i!e:er# in t%e Nort%
At(anti!F
Un t 10 Pro e!t R s "ana#ement
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Prioriti7in# Risks
Use t%e Pareto Ru(e
Pi!k t%e to 10
Un t 10 Pro e!t R s "ana#ement
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Risk E>am(e
uose t%at /ou %ave i&entifie& t%e tri(etD
1+ r 1 %i#% staff turnover
2+ l 1 estimate& at 0+
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Risk E>am(e !ont+
tes to Re&u!e t%e Risk of urnovers mi#%t in!(u&eD
meet 9it% !urrent staff to &etermine !auses of %i#% turnover
!%an#e t%ese :efore roe!t !ommen!es
assume that turnover WILL occur &urin# roe!t an& :ui(& t%at into (an
or#ani7e roe!t teams so t%at information a:out ea!% &eve(oment a!tivit/ is9i&e(/ &iserse&
&efine &o!umentation stan&ar&s
esta:(is% me!%anism so t%at t%ese are &eve(oe& in a time(/ manner
!on&u!t eer revie9s an& 9a(kt%rou#%s for se!on&-sour!in#
i&entif/ critical technologists
&efine a :a!ku erson for ea!% !riti!a( te!%no(o#ist
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2014 ' 0110 31
ur Risk Para&i#m
$ontro(
'&entif/
Q5Q Ana(/7eP(an
ra!k