risk and risk management (theory and practice) “it’s tough to make predictions, especially about...
TRANSCRIPT
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Risk and Risk Management (Theory and Practice)
“It’s tough to make predictions, especially about the future.”Yogi Berra, Niels Bohr
Todd Little and Chris Matts
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A Game?
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A Game?
• Create a six sided random number generator dice like thingy. Everyone on the team needs to roll a double six.
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A Game?
• Create a four sided random number generator dice like thingy. Everyone on the team needs to roll a double six.
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Exercise
What are the types of risk?
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How do “Risky Businesses” work
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Financial Markets
A severe depression like that of 1920-21 is outside the range of probability.Harvard Economic Society, Weekly Letter, November 16, 1929.
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New Product Development
I think there is a world market for about five computers.Thomas J. Watson, chairman of IBM, 1943.
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War
They couldn't hit an elephant at this dist…General John B. Sedgwick, Union Army Civil War officer's last words, uttered during the Battle of Spotsylvania, 1864
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A right, but not an obligation to do something
Real Options
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Medical World
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Real Options
Value of Information
Value of Flexibility
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Oil & Gas Exploration
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Which Risks Are Important
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Hurricane Rita
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Getting Better
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Movies
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Business Risk Profiles
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Books
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Venture Capital
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Categories of risk
Delivery Failure Business Case Failure
Collateral Damage
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Delivery Challenges/Failures
Challenged46%
Failed19%Succesful
35%
Standish Group 2006, reported by CEO Jim Johnson, CIO.com, ‘How to Spot a Failing Project’
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Business Case Failure
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Collateral Damage
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Wrong Priorities
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Collateral DamageAn effective roll-back strategy
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Delivery Failure results in Collateral Damage
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I’m beginning to think it wasn’t such a good idea to turn off those unit tests
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Business Case Failure
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Features and Functions
Never Used 45%
Rarely Used 19%
Sometimes 16%
Often 13%Always 7%
Always or Often Used: 20%
Never or Rarely Used: 64%
Standish Group Study, reported by CEO Jim Johnson, XP2002
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Purpose Alignment Model
MarketDifferentiating
High
Low
Mission CriticalLow High
Differentiating
ParityWho Cares?
Partner
Purpose Does Not Equal PriorityPurpose Does Not Equal Priority
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Considerations
RisksRisks AssumptionsAssumptions ConstraintsConstraints
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Delivery Failure
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Managing the Coming Storm Inside the Tornado
When will we get the requirements?All in good time, my little pretty, all in good timeBut I guess it doesn't matter anyway
Doesn't anybody believe me?
You're a very bad man!
Just give me your estimates by this afternoon
No, we need something today!
I already promised the customer it will be out in 6 months
No, we need it sooner.
Not so fast! Not so fast! ... I'll have to give the matter a little thought. Go away and come back tomorrow
Ok then, it will take 2 years.
Team Unity
Project Kickoff
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We’re not in Kansas Anymore
My! People come and go so quickly here!
I may not come out alive, but I'm goin' in there!
The Great and Powerful Oz has got matters well in hand.
"Hee hee hee ha ha! Going so soon? I wouldn't hear of it! Why, my little party's just beginning!
Developer HeroReorg
Testing
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IEEE Software, May/June 2006
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Data from LGCInitial Estimate vs. Actual Project Duration (from LGC Portfolio Database)
y = 1.6886x
0
200
400
600
800
1000
1200
0 100 200 300 400 500 600 700 800 900 1000
Initial Estimate
Ac
tua
l
LGC Data
Ideal
Linear (LGC Data)
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CDF Distribution Curve (LGC)Landmark Graphics Cumulative Distribution of Portfolio Projects
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0.1 1 10
Ratio of Actual to Estimate
Cu
mm
ula
tive
Pro
bab
ility p(10) 0.96
p(50) 1.76p(90) 3.23
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Delivery Risk Profiles
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But is Uncertainty Really Reduced?
“Take away an ordinary person’s illusions and you take away happiness at the same time.”
Henrik Ibsen--Villanden
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Cumulative Distribution (CDF) Curve
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0.1 1 10 100
Initial
Post Env
Post Plan
Post Dev
Log Normal
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Why is
Software
Late?
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From the home office in Duncan, Oklahoma
Top Ten reasons why we are late in 2008
Dubai, UAEDubai, UAE
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10: Requirements, what Requirements?
What you want, baby I got it
R-E-Q-U-I-R-E Find out what it means to me
Top Ten reasons why we are late in 2008
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9: Dependencies on other groups that were late
Top Ten reasons why we are late in 2008
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8: Over-optimistic Schedule Estimation Always look on the bright side of code. . . . . . .Always look on the bright side of code. . . . . . .The code’s a piece of $#!^, when we look at itWe can always overlook a minor kink . . . .It probably compiles, it might even link . . .Surely that must mean it doesn’t stink
Top Ten reasons why we are late in 2008
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7: Those weren’t MY estimates
How low can you go!
Scheduling Ritual
Top Ten reasons why we are late in 2008
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6: Not enough testers or documentation resources.
Who needs them anyway? We put those bugs--I mean features--in there on purpose. Besides, it was difficult to program, it should be difficult to use.
Top Ten reasons why we are late in 2008
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5: Offshore and Outsourcing issues
My source code lies over the ocean, My source code lies over the ocean, My source code lies over the sea .My source code lies over the sea .
My source code lies over the ocean, My source code lies over the ocean, Oh bring back my source code to meOh bring back my source code to me
. . . . .. . . . .Bring Back, Bring Back, Bring Back, Bring Back,
oh bring back my source code to me, to meoh bring back my source code to me, to meBring Back, Bring Back, Bring Back, Bring Back,
oh bring back my source code to meoh bring back my source code to me
Top Ten reasons why we are late in 2008
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4: One word, Ch-ch-ch-changes
Top Ten reasons why we are late in 2008
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3: I can’t get no, System Admin– I can’t get no, CM action– ‘cause I try,– ..and I try,– ….and I try,– ……and I try….
Top Ten reasons why we are late in 2008
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2: You didn’t give me the headcount that you promised
Top Ten reasons why we are late in 2008
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1: Weren’t you doing the backups!?1: Weren’t you doing the backups!?
Top Ten reasons why we are late in 2008
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Why is Software Late?Genuchten 1991 IEEE
General Manager
Project Manager Item
1 10 Insufficient front end planning
2 3 Unrealistic project plan
3 8 Project scope underestimated
4 1 Customer/management changes
5 14 Insufficient contingency planning
6 13 Inability to track progress
7 5 Inability to track problems early
8 9 Insufficient Number of checkpoints
9 4 Staffing problems
10 2 Technical complexity
11 6 Priority Shifts
12 11 No commitment by personnel to plan
13 12 Uncooperative support groups
14 7 Sinking team spirit
15 15 Unqualified project personnel
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Why is Software Late?Genuchten 1991 IEEE
General Manager
Project Manager Item
4 1 Customer/management changes
10 2 Technical complexity
2 3 Unrealistic project plan
9 4 Staffing problems
7 5 Inability to track problems early
11 6 Priority Shifts
14 7 Sinking team spirit
3 8 Project scope underestimated
8 9 Insufficient Number of checkpoints
1 10 Insufficient front end planning
12 11 No commitment by personnel to plan
13 12 Uncooperative support groups
6 13 Inability to track progress
5 14 Insufficient contingency planning
15 15 Unqualified project personnel
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Defending an Unpopular Schedule
http://www.stevemcconnell.com/ieeesoftware/bp03.htm
• Developers tend to be temperamentally opposed to the use of negotiating tricks. Such tricks offend their sense of technical accuracy and fair play. Developers don't want to offer lopsidedly high initial estimates even when they know that customers, marketers, or bosses will start with lopsidedly low bargaining positions.
– Steve McConnell
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We want this
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Negotiation Bias
• "It is difficult to get a man to understand something when his salary depends upon his not understanding it.“
» Upton Sinclair:
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Test 1 (Jørgensen)
Group Guidance Result
A 800
B 40
C 4
D None 160
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Test 1
Group Guidance Result
A 800 300
B 40 100
C 4 60
D None 160
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Understand Bias
• "What gets us into trouble is not what we don't know. It's what we know for sure that just ain't so.“
» Mark Twain
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Don’t know thatwe don’t know
Knowable
Unknowable
Uncertainty
Know that we know
Know that we don’t know
Don’t know that we know
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Don’t know thatwe don’t know
Knowable
Unknowable
Uncertainty
Know that we know
Know that we don’t know
Don’t know that we know
UncertaintyManagement
Planning Risk Management
p10 p50
p90
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The Goal
On Time
To Spec
Within Budget
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Da Plan, Boss – Da Plan
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The Cone of Uncertainty
We expect uncertainty and manage for it through iterations, anticipation, and adaptation.
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Delivery Failure. staff liquidity
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Context Leadership Model
Project Complexity
Un
cer
tain
ty
Cows
BullsColts
Sheep Dogs
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Context Leadership Model
Project Complexity
Un
cer
tain
ty
Simple, young projects. Need agilityTight Teams
Sheep Dogs Complex, mature marketNeed defined interfaces
Cows
BullsAgility to handle uncertaintyProcess definition to cope
with complexity
laissez faire
Colts
Low
Low
High
High
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Bull Product Release
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Reduce Uncertainty or Complexity
Uncertainty Complexity
Opportunities to Reduce Uncertainty:• Use proven technologies• Reduce project duration
Opportunities to Reduce Complexity:• Collocate the team• Break project into sub-projects
Attribute Score
Market ███
Technical ███
# Customers █████████
Duration █████████
Change ███
Attribute Score
Team Size █████████
Mission Critical █████████
Team Location █████████
Team Maturity ███
Domain Gaps ███
Dependencies █████████
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Partitioning
Dog Project
Cow Project
Colt Project
Bull Program
Remember: Loose Coupling and Strong Cohesion
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Project Leadership Guide
M
arke
tD
iffe
ren
tiat
ing
High
Low
Mission CriticalLow High
Invent
ManageOffload
Create Change
Embrace Change
Eliminate Change
Control Change
Ad Hoc Agile
Outsource Structured
Deploy
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Portfolio Management
0.0
2.0
4.0
6.0
8.0
10.0
12.0
0.0 5.0 10.0 15.0 20.0 25.0 30.0Project Complexity
Un
cer
tain
ty
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Not all dogs are the same
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Successful Projects?
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Curses