Solve problems through rigorous analysis.
The presentation shows how to
1. define the correct problem and its environment and 2. solve the problem using issue trees.
2. We all solve problems daily
“How should we complement our product portfolio?”
“Why haven’t we met our sales target?”
“How can we reduce illegal immigration?”
...
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3. But most of us haven’t received formal training
on how to do it
From Cartoonbank.com
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4. This presentation shows how
basing your resolution on key
questions can help
We’ll see how to:
• Define optimally your problem
• Solve it with an issue tree
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5. This presentation shows how to define a problem and how to plan
its solution
Basing your problem-
We all solve But we don’t do
problems it optimally solving on key
questions can help
Define the problem Identify the solution
Define the key Understand Build the
Improve it
question the context issue tree
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6. Basing your problem-
solving on key
questions can help
Define the problem Identify the solution
Define the key Understand Build the
Improve it
question the context issue tree
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7. Basing your problem-
solving on key
questions can help
Define the problem Identify the solution
Define the key Understand Build the
Improve it
question the context issue tree
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8. First, you have to identify the right key question (we’ll
consider only “how” and “why” questions)
From Cartoonbank.com
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9. This can be more difficult than it sounds
Problem: the cars of the employees of a company don’t
fit into the parking lot
What’s the key question?
From Cartoonbank.com
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10. For instance, it is easy to consider only one
aspect of the problem
How can we
increase the
capacity of the
lot?
After M. Jones, The Thinker’s Toolkit
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11. For instance, it is easy to consider only one
aspect of the problem
Expending its
dimensions
How can we
increase the
capacity of the
lot?
Putting more
cars in the
current space
After M. Jones, The Thinker’s Toolkit
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12. For instance, it is easy to consider only one
aspect of the problem
Building a new
Expending its floor
dimensions
How can we Using a new parcel
increase the
capacity of the
lot?
Putting more
cars in the
current space
After M. Jones, The Thinker’s Toolkit
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13. For instance, it is easy to consider only one
aspect of the problem
Building a new
Expending its floor
dimensions
How can we Using a new parcel
increase the
capacity of the
Reducing the size of
lot?
each space
Putting more
cars in the
current space Reducing the area not
dedicated to parking
After M. Jones, The Thinker’s Toolkit
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14. For instance, it is easy to consider only one
aspect of the problem (cont’d)
How can we
reduce the
number of cars?
After M. Jones, The Thinker’s Toolkit
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15. For instance, it is easy to consider only one
aspect of the problem (cont’d)
Reducing the number of
employees
How can we
reduce the
number of cars?
Increasing the number
of employees per car
After M. Jones, The Thinker’s Toolkit
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16. For instance, it is easy to consider only one
aspect of the problem (cont’d)
Moving part of the
company elsewhere
Reducing the number of
employees
How can we Eliminating jobs
reduce the
number of cars?
Increasing the number
of employees per car
After M. Jones, The Thinker’s Toolkit
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17. For instance, it is easy to consider only one
aspect of the problem (cont’d)
Moving part of the
company elsewhere
Reducing the number of
employees
How can we Eliminating jobs
reduce the
Making that more
number of cars?
employees use other
Increasing the number means of transportation
of employees per car
Promoting car
pooling
After M. Jones, The Thinker’s Toolkit
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18. So ensure you are solving the right problem (not a part,
not a symptom)
Building a new
Expending its floor
dimensions
How can we Using a new parcel
increase the
capacity of the Reducing the size of
lot? each space
Putting more
cars in the
How can we current space Reducing the area not
solve the dedicated to parking
saturation of the
Moving part of the
lot? Reducing the company elsewhere
number of
employees Eliminating jobs
How can we
reduce the Making that more
number of employees use other
cars? Increasing means of
the number of transportation
employees
per car Promoting car
pooling
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19. The key question encompasses all the other
relevant ones
? ?
? ? ?
? ?
? ? ? ?
?
?
?
?
✔ Key question ✘
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20. The key question must have the right scope:
neither too narrow nor too wide
Make the key question...
Neither too vague
Nor too narrow / oriented in the wrong direction /
based on a hypothesis / compounded
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21. To fully describe your problem you must complement
your key question with an introductory flow...
Situation:
C
O The non controversial, relevant information about the problem.
N ONLY the relevant information
T
E Complication:
X
T The unique need for change (potentially illustrated by some of its
symptoms/consequences)
Key question: THE question you want to answer
Adapted from Barbara Minto, The Minto Pyramid Principle
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22. ... and a definition of the environment
Criteria for a high-quality tree:
Optional actions that will ensure that your tree is of superior quality
S
c
o Implementation parameters: Out of scope:
p
e Deadlines, budget, numerical Actions that you could take but
objectives, etc. decide upfront not to
Use only action verbs
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23. At the end, you might find it convenient to summarize
your problem in a problem identity card
Problem Identity Card
Project:
Situation:
C The key issue: the non controversial, relevant information about the
O
N problem. ONLY the relevant information
T
E
X Complication:
T The unique need for change (potentially illustrated by some of its
symptoms/consequences)
Key question: THE question you want to answer
Criteria for a high-quality tree:
S Optional action that will ensure that your tree is of superior quality
C
O
P Implementation parameters: Out of scope:
E
Deadlines, budget, numerical Actions that you could take
objectives, etc. but decide upfront not to
After Andersen Consulting, Issue-Based Problem Solving
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24. Basing your problem-
solving on key
questions can help
Define the problem Identify the solution
Define the key Understand Build the
Improve it
question the context issue tree
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25. Basing your problem-
solving on key
questions can help
Define the problem Identify the solution
Define the key Understand Build the
Improve it
question the context issue tree
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26. Issue trees have four basic rules
Go from the key
question to the analysis
Are MECE
Issue trees
Are perspicacious
Keep asking “why” or “how”
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27. A tree goes from the key question to the data
sources
Data needed /
Sub-...-issue Hypothesis Analysis
Source
H1: Increasing the
price of our entire
family product will A1: Conduct
generate more D1: Client
simulation,
revenue than the one interviews
benchmark
lost because of the
associated sales
volume decrease
H2: ... A2: ... D2: ...
H3: ... A3: ... D3: ...
How can we H4: ... A4: ... D4: ...
increase our
profitability For all products
Only for specific
products
Switching suppliers
The analysis tests if
the hypothesis
Negotiating better
makes sense; it
doesn’t explain how
to implement it!
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28. A tree goes from the key question to the data
sources
Data needed /
Key question Sub-issue Sub-...-issue Hypothesis Analysis
Source
H1: Increasing the
price of our entire
family product will A1: Conduct
generate more D1: Client
simulation,
revenue than the one interviews
benchmark
lost because of the
associated sales
volume decrease
How can we H2: ... A2: ... D2: ...
➚ our
H3: ... A3: ... D3: ...
revenues?
How can we H4: ... A4: ... D4: ...
increase our
profitability For all products
Only for specific
products
Switching suppliers
The analysis tests if
How can we
➘ our the hypothesis
costs? Negotiating better
makes sense; it
doesn’t explain how
to implement it!
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29. A tree goes from the key question to the data
sources
Sub-sub- Data needed /
Key question Sub-issue Sub-...-issue Hypothesis Analysis
issue Source
H1: Increasing the
price of our entire
family product will A1: Conduct
generate more D1: Client
simulation,
revenue than the one interviews
benchmark
lost because of the
➚ prices? associated sales
volume decrease
How can we H2: ... A2: ... D2: ...
➚ our
H3: ... A3: ... D3: ...
revenues?
➚ volume?
How can we H4: ... A4: ... D4: ...
increase our
profitability For all products
Only for specific
products
Switching suppliers
The analysis tests if
How can we
➘ our the hypothesis
costs? Negotiating better
makes sense; it
doesn’t explain how
to implement it!
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30. A tree goes from the key question to the data
sources
Sub-sub- Data needed /
Key question Sub-issue Sub-...-issue Hypothesis Analysis
issue Source
H1: Increasing the
price of our entire
family product will A1: Conduct
generate more D1: Client
simulation,
revenue than the one interviews
benchmark
lost because of the
➚ prices? associated sales
volume decrease
How can we H2: ... A2: ... D2: ...
➚ our
H3: ... A3: ... D3: ...
revenues?
➚ volume?
How can we H4: ... A4: ... D4: ...
increase our
profitability For all products
Raw materials Only for specific
costs? products
Switching suppliers
The analysis tests if
How can we
➘ our Employee
costs?
the hypothesis
costs? Negotiating better
makes sense; it
doesn’t explain how
Other costs?
to implement it!
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31. A tree goes from the key question to the data
sources
Sub-sub- Sub-...- Data needed /
Key question Sub-issue Sub-...-issue Hypothesis Analysis
issue issue Source
H1: Increasing the
price of our entire
family product will A1: Conduct
Of all generate more D1: Client
products? simulation,
revenue than the one interviews
benchmark
lost because of the
➚ prices? associated sales
Of only specific volume decrease
How can we products? H2: ... A2: ... D2: ...
➚ our
H3: ... A3: ... D3: ...
revenues?
➚ volume?
How can we H4: ... A4: ... D4: ...
increase our
profitability For all products
Raw materials Only for specific
costs? products
Switching suppliers
The analysis tests if
How can we
➘ our Employee
costs?
the hypothesis
costs? Negotiating better
makes sense; it
doesn’t explain how
Other costs?
to implement it!
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32. A tree goes from the key question to the data
sources
Sub-sub- Sub-...- Data needed /
Key question Sub-issue Sub-...-issue Hypothesis Analysis
issue issue Source
H1: Increasing the
price of our entire
family product will A1: Conduct
Of all generate more D1: Client
products? simulation,
revenue than the one interviews
benchmark
lost because of the
➚ prices? associated sales
Of only specific volume decrease
How can we products? H2: ... A2: ... D2: ...
➚ our
➚ publicity? H3: ... A3: ... D3: ...
revenues?
➚ volume?
How can we ➚ offers? H4: ... A4: ... D4: ...
increase our
profitability For all products
Raw materials Only for specific
costs? products
Switching suppliers
The analysis tests if
How can we
➘ our Employee
costs?
the hypothesis
costs? Negotiating better
makes sense; it
doesn’t explain how
Other costs?
to implement it!
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33. A tree goes from the key question to the data
sources
Sub-sub- Sub-...- Data needed /
Key question Sub-issue Sub-...-issue Hypothesis Analysis
issue issue Source
H1: Increasing the
price of our entire
family product will A1: Conduct
Of all generate more D1: Client
products? simulation,
revenue than the one interviews
benchmark
lost because of the
➚ prices? associated sales
Of only specific volume decrease
How can we products? H2: ... A2: ... D2: ...
➚ our
➚ publicity? H3: ... A3: ... D3: ...
revenues?
➚ volume?
How can we ➚ offers? H4: ... A4: ... D4: ...
increase our
profitability For all products
➘ the quantity
of raw
Raw materials Only for specific
materials?
costs? products
Switching suppliers
The analysis tests if
How can we Get cheaper
➘ our Employee
costs?
raw the hypothesis
costs? materials? Negotiating better
makes sense; it
doesn’t explain how
Other costs?
to implement it!
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34. Each column describes in further detail—or solves—
the previous one
Sub-sub- Sub-...- Data needed /
Key question Sub-issue Sub-...-issue Hypothesis Analysis
issue issue Source
Because they Increasing the
H1:
think they don’t of our entire
price
need it family product will
A1: Conduct
Because they generate more D1: Client
don’t want simulation,
Because they are than the one benchmark
revenue interviews
Because they lazy lost because of the
don’t take associated sales
Because they volume decrease
Because courses
can’t H2: ... A2: ... D2: ...
they don’t
want to take H3: ... A3: ... D3: ...
Because they
a first one
prefer to use
Why aren’t there other delivery
more instructors H4: ... A4: ... D4: ...
methods
taking
improvement
courses online?
...
Because they
Because didn’t like it
they tried it
but don’t
want to take
another Because they
think they don’t
need it
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35. Items in the tree are ideas: questions, action verbs,
hypotheses. They aren’t just titles
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36. Items in the tree are ideas: questions, action verbs,
hypotheses. They aren’t just titles
How can we
How can we increase revenue?
increase
profitability? How can we
reduce costs?
✔
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37. Items in the tree are ideas: questions, action verbs,
hypotheses. They aren’t just titles
How can we Increasing revenues
How can we How can we
increase revenue? increase
increase
profitability? profitability?
How can we Reducing costs
reduce costs?
✔ ✔
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38. Items in the tree are ideas: questions, action verbs,
hypotheses. They aren’t just titles
How can we Increasing revenues
How can we How can we
increase revenue? increase
increase
profitability? profitability?
How can we Reducing costs
reduce costs?
✔ ✔
Raw materials?
How can we Employees?
➘ costs?
Costos?
✔
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39. Items in the tree are ideas: questions, action verbs,
hypotheses. They aren’t just titles
How can we Increasing revenues
How can we How can we
increase revenue? increase
increase
profitability? profitability?
How can we Reducing costs
reduce costs?
✔ ✔
Raw materials? Revenue
How can we
How can we increase
Employees? profitability?
➘ costs?
Costs
Costos?
Doesn’t work because
✔ you have to infere
what to do with the
revenue and costs
✘
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40. Each move to the right must bring some value
Because they think
they don’t need it
Because they
don’t want
Because they are
Because they lazy
don’t take courses
Because they
Because they can’t
don’t want to
take a first
Because they
one
prefer to use other
Why aren’t there delivery methods
more instructors
taking
improvement
courses online?
Because they
didn’t like it
Because they
tried it but
don’t want to
take another Because they think
they don’t need it
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41. Issue trees always diverge: each column has more
elements than the previous one...
Adding the info
of the new
personnel
How can we Eliminating the
maintain the info of the
personnel personnel
database up to leaving the
date? company
Capturing the
changes in the
personnel
moving within
the company
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42. Issue trees always diverge: each column has more
elements than the previous one...
Adding the info
of the new
personnel
How can we Eliminating the Own
maintain the info of the personnel
personnel personnel
database up to leaving the
Outsourced
date? company
personnel
Capturing the
changes in the
personnel
moving within
the company
✘
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43. Issue trees always diverge: each column has more
elements than the previous one...
1
Adding the info
Adding the info Own personnel
of the new
of the new
personnel
personnel Outsourced personnel
How can we Eliminating the Own
How can we Eliminating the
maintain the info of the personnel
maintain the info of the Own personnel
personnel personnel
personnel personnel
database up to leaving the
Outsourced database up to leaving the
date? company Outsourced personnel
personnel date? company
Capturing the
Capturing the
changes in the
changes in the
personnel
personnel
moving within
moving within
1
the company
the company
✘ ✔
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44. ... similarly, each item has, at least, two sub-items
An issue with a single sub-issue has a problem:
Either there are other possibilities or
The group {issue / sub-issue} is redundant
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45. ... similarly, each item has, at least, two sub-items
An issue with a single sub-issue has a problem:
Either there are other possibilities or
The group {issue / sub-issue} is redundant
How can we get Increasing the inscription
more students? of new students
✘
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46. Issue trees rely on mutually exclusive and
collectively exhaustive (MECE) groupings
A B
C
A B A B
D D C
Mutually exclusive Collectively exhaustive
MECE sets
sets sets
MECE?
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47. Issue trees rely on mutually exclusive and
collectively exhaustive (MECE) groupings
A B
C
A B A B
D D C
Mutually exclusive Collectively exhaustive
MECE sets
sets sets
Because they don’t study
enough
MECE? Because I grade very
Why are the grades steeply
of my students Because my evaluation
mediocre? tool is inappropriate
Because the material of the
exam wasn’t covered in class
Because they don’t have
the intellectual abilities
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48. Issue trees rely on mutually exclusive and
collectively exhaustive (MECE) groupings
A B
C
A B A B
D D C
Mutually exclusive Collectively exhaustive
MECE sets
sets sets
Because they don’t study
enough
MECE? Because I grade very
Why are the grades steeply
of my students Because my evaluation
mediocre? tool is inappropriate
Because the material of the
exam wasn’t covered in class
Because they don’t have
the intellectual abilities
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49. Issue trees are perspicacious
- Where am I? From Cartoonbank.com
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50. Issue trees are perspicacious
- Where am I? From Cartoonbank.com
- In a car, M’am
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51. Issue trees are perspicacious
- Where am I? From Cartoonbank.com
-At the intersection of Westheimer
- In a car, M’am
and Fourth.
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52. Each tree progresses to the right consistently asking
“why” or “how” (only one type for any given tree)
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53. Each tree progresses to the right consistently asking
“why” or “how” (only one type for any given tree)
Diagnostic - “Why?” Cause
Break the problem in its
potential causes Problem Cause
Cause
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54. Each tree progresses to the right consistently asking
“why” or “how” (only one type for any given tree)
Diagnostic - “Why?” Cause
Break the problem in its
potential causes Problem Cause
Cause
Solution - “How?” Action
Identify alternative
solutions for the problem Problem Action
Action
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55. Each tree progresses to the right consistently asking
“why” or “how” (only one type for any given tree)
Diagnostic - “Why?” Cause
Break the problem in its
potential causes Problem Cause
Cause
Solution - “How?” Action
Identify alternative
solutions for the problem Problem Action
Action
Each tree follow the same pattern (either it is a “how” or a
“why” but not both
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56. “How” trees do not describe a sequential process; they
show alternative solutions to the problem
Cartoons are from Cartoonbank.com
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57. “How” trees do not describe a sequential process; they
show alternative solutions to the problem
1. Electing a
means of
transportation
2. Buying a
How can I go ticket
from NYC to
London?
3. Going to
the port/
airport
4. Boarding
✘ Cartoons are from Cartoonbank.com
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58. “How” trees do not describe a sequential process; they
show alternative solutions to the problem
Using a plane
Using a helicopter
1. Electing a Flying
means of Using a balloon
transportation
Using a rocket
2. Buying a How can I go
How can I go ticket from NYC to
from NYC to London? With a raft
Traveling on
London?
the surface
3. Going to
the port/ Swimming
airport Traveling
by sea
4. Boarding
✘ Using a
submarine ✔
Cartoons are from Cartoonbank.com
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59. “How” trees lead to actions that can solve the key
question, no to some analysis
How can we
improve the
elaboration of
invoices?
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60. “How” trees lead to actions that can solve the key
question, no to some analysis
How do we make the clients’
specifications clear?
How can we
improve the
elaboration of
✔
invoices?
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61. “How” trees lead to actions that can solve the key
question, no to some analysis
How do we make the clients’
specifications clear?
How can we
improve the
elaboration of
✔
invoices?
How do we know if our
employees understand the
specifications?
✘
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62. “How” trees lead to actions that can solve the key
question, no to some analysis
How do we make the clients’
specifications clear?
How can we
improve the
elaboration of
✔
invoices?
How do we know if our How do we ensure that our
employees understand the employees understand the
specifications? specifications
✘ ✔
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63. A few tips can help improve your trees
Make them parallel
Diverge
How do you Accept alternatives
improve your Enlist others
trees?
Change as you go
Make sense
Adapt your level of confidence
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64. Effective trees are parallel
They are parallel in action
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65. Effective trees are parallel
They are parallel in action
Improving the Improving the
How can we shopping experience shopping experience
improve our
clients’
experience?
Following up after Improving the post-
✘ ✔
the sales sale experience
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66. Effective trees are parallel
They are parallel in action
Improving the Improving the
How can we shopping experience shopping experience
improve our
clients’
experience?
Following up after Improving the post-
✘ ✔
the sales sale experience
They are parallel in construction
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67. Effective trees are parallel
They are parallel in action
Improving the Improving the
How can we shopping experience shopping experience
improve our
clients’
experience?
Following up after Improving the post-
✘ ✔
the sales sale experience
They are parallel in construction
Reducing our Reducing our delivery
delivery time time
How can we Increasing our
improve the post- Increasing our friendliness
sale experience? friendliness
How can we solve the Solving the problem
problem the first time
our? ✘ the first time out
✔
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68. Columns have elements of similar weight. You can
check for this by ensuring that no column has an
outlier
How do we
increase
revenues?
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69. Columns have elements of similar weight. You can
check for this by ensuring that no column has an
outlier
Adding new services
How do we
increase Increasing prices
revenues?
Increasing volumes
✘
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70. Columns have elements of similar weight. You can
check for this by ensuring that no column has an
outlier
Adding new services
How do we
increase Increasing prices
revenues?
Increasing volumes
✘
Increasing prices
Increasing revenues
with our current
How do we services
increase Increasing volumes
revenues?
Adding new services
✔
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71. You will need to be creative to have exhaustive trees, which
will require to get out of your comfort zone
Value of the
idea
Creative
Obvious Absurd
Difficulty of implementation
Source: Accenture, Tools and Frameworks Pocket Guide
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72. To be creative, be prepared to ignore the
consequences of your ideas, at least at the beginning
From Cartoonbank.com
“Nice, but we’ll need an environmental-impact study, a
warranty, recall bulletins, recycling facilities, and twenty-four-
hour customer support.”
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73. You can solve each problem with more than just one
tree
Ensure that for each division in your tree, you can find a name for the group of
sub-issues you are creating
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74. You can solve each problem with more than just one
tree
Reducing
variable costs
How do we
reduce our
costs?
Direct
Reducing
fixed costs
Indirect
Classifying by
cost type ✔
Ensure that for each division in your tree, you can find a name for the group of
sub-issues you are creating
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75. You can solve each problem with more than just one
tree
Reducing Reducing
variable costs production costs
How do we
Reducing marketing
reduce our
costs
costs?
Direct Reducing
Reducing administrative costs
fixed costs
Indirect Reducing other costs
Classifying by Classifying by the
cost type ✔ origin of the cost ✔
Ensure that for each division in your tree, you can find a name for the group of
sub-issues you are creating
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76. As your analysis moves forward, be prepared to modify
your tree
Apply judgement between “satisficing” (accepting the first
acceptable solution) and “maximizing” (keep on searching for
the optimal solution)
Modify your tree as your analysis reveals if your hypotheses
are true or false
See also Barry Schwartz, The Paradox of Choice
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77. As your build your analytical structure, review
it periodically to ensure it makes sense
“Farewell my dear fellows, I am
off to the Seven Years War!”
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78. Problems have different orders of complexity
Problem types
Role of expertise
Role of facts
Complexity
DETERMINISTIC, DETERMINISTIC, RANDOM, FINITE RANDOM,
DIRECT COMPUTED CONTINUOUS
You can identify all
A direct answer You can compute the possible answer The answer is part
exist the answer but cannot pick the of a continuum, you
correct one can only determine
its range
E.g. What is the E.g. How do you E.g. Who will be the E.g. How profitable
height of the Eiffel convert liters to largest car will we be next
Tower? gallons manufacturer in ten quarter?
years?
Adapted from Morgan Jones, The Thinker’s Toolkit
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79. You need to adapt your confidence in your
solutions accordingly
Problem types
Role of expertise
and probability of
error
Role of facts and
trust in findings
Complexity
DETERMINISTIC, DETERMINISTIC, RANDOM, FINITE RANDOM,
DIRECT COMPUTED CONTINUOUS
You can identify all
A direct answer You can compute the possible answer The answer is part
exist the answer but cannot pick the of a continuum, you
correct one can only determine
its range
E.g. What is the E.g. How do you E.g. Who will be the E.g. How profitable
height of the Eiffel convert liters to largest car will we be next
Tower? gallons manufacturer in ten quarter?
years?
Adapted from Morgan Jones, The Thinker’s Toolkit
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80. Closing, basing your problem solving on key questions can
improve it drastically
Basing your problem-
We all solve But we don’t do
problems it optimally solving on key questions
can help
Define the problem Identify the solution
Define the key Understand the Build the issue
tree Improve it
question environment
Don’t make Identify Go from
Define Be
it too the Define the key Be Ask “why”
S, C, perspicaci
narrow nor quality scope question to MECE or “how”
KQ ous
too vague criteria analysis
Accept Enlist Change as Make Adapt your
Be parallel Diverge
alternatives others you go sense confidence
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81. References
Andersen Consulting, Issue-Based Problem Solving, The Consulting Resource Book
Version 3, September 1999
Linda Long, The Power of Logic in Problem Solving & Communication, Strategic
Communication Consulting, 2004
Morgan D. Jones, The Thinker’s Toolkit, Random House: New York, 1998
James M. Higgins, 101 Creative Problem Solving Techniques, New Management
Publishing Company: Winter Park, 1994
James Surowiecki, The Wisdom of Crowds, Random House, 2004
Barry Schwartz, The Paradox of Choice, HarperCollins, 2004
Strategic Services, Tools and Frameworks Pocket Guide, Internal Publication,
Accenture
Issue-Based Problem Solving, Internal Publication, Accenture
Barbara Minto, The Minto Pyramid Principle, Minto International: London, 1996
Edward de Bono, Serious Creativity: Using the Power of Lateral Thinking to Create New
Ideas
Michael Michalko, Thinkertoys: A Handbook of Business Creativity for the 90s
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82. See more and download this presentation at
powerful-problem-solving.com
Editor's Notes
Tags: problem solving, mutually exclusive collectively exhaustive, MECE, logic, thinking, issue trees, Minto, pyramid, strategy, strategic thinking, hypothesis, hypotheses, analysis, key question, how, why, diagnostic, insightful, effective, efficient, innovative
Description: Solve problems using key issues. The presentation shows how to 1. define the correct problem and its environment and 2. solve the problem using issue trees.