Management Tools presentation: Ishikawa Diagram (Fishbone Diagram), 6-3-5 Technique, Six Thinking Hats
Technical University of Applied Sciences Wildau, October 2017
Resources for the ppt are provided in the last slide.
Claudia Gomez
Hassan Nasirzadeh
Merve Nur Tas
Leonor Filipe
1. MANAGEMENT TOOLS:
ISHIKAWA DIAGRAM, 6-3-5 & SIX THINKING HATS
Merve Nur Tas - Leonor Filipe - Claudia Gomez - Hassan Nasirzadeh
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ISHIKAWA METHOD - DEFINITION
- Cause and Effect Analysis
- Fishbone Diagram
(Cause and Effect Analysis - Fishbone diagram)
Created by Kaoru Ishikawa - 1943
Diagram that aims to organize and
discuss all the potential causes for a
specific problem
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ISHIKAWA METHOD – ADVANTAGES &
DISADVANTAGES
ADVANTAGES DISADVANTAGES
- Easy to execute
- Helps to understand the main
causes of a problem
- Explores and shows, visually, all
the possible causes
- Can be used as a statistical tool for
quality control of products
- Does not show the evolution of the
problem
- Does not identify the gravity of the
problem
- For each situation, it is needed to
repeat the process and follow all
the diagram’s steps
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ISHIKAWA METHOD – EXAMPLE
Delay in
production
MATERIALS
MANPOWER MEASUREMENT
MACHINES METHODS
Highly optimistic
schedule
Miscommunication
Manpower shortage
Failure of machines
Lack of training
Low quality of
raw material
Wrong or non
existing standard
procedures
Raw materials’ and
parts unavailable
Insufficient capacity
Lack of
inventory
Low performance
Lack of maintenance
Inaccurate stock
planning
Unexpected
increased demand
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ISHIKAWA METHOD: Root Causes
SERVICE INDUSTRIES
Surroundings
Suppliers
Systems
Skills
MANUFACTURING
Machine
Materials
Method
Man
Measurement
PRODUCT MARKETING
Product/Service
Price
Promotion
Place
Process
People
Physical Evidence
Performance
4 Ss 5 Ms 8 Ps
Commonly used frameworks for Root Cause
Analysis - Not mandatory
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6-3-5 METHOD – ADVANTAGES &
DISADVANTAGES
ADVANTAGES DISADVANTAGES
- Simple and easy to execute
- Does not require qualified moderator
- Exploits innovative potential
- Active participation from all
participants
- Useful ideas are further developed
- Author of a great idea can be
identified
- Issues of clarity and difficulty to
express ideas clearly
- Pressure of 5 min limits – less
quality
- May lead to less creative solutions –
no group discussion, clash of ideas
8. 6-3-5 METHOD: LSC APPLICATIONS
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SCENARIO
How to improve quality of products in a
manufacturing process?
Define
the
problem
Gather a
team
Production manager, quality manager,
quality control, procurement, product
development, machine operator
Perform a 6-3-5
Brainstorming
Machine
operator
Improve
quality of
raw material
New
maintenance
plan
Improve
training
workers
Product
development
Review
material vs
product
design
Replace a
problematic
machine
.
.
.
Procurement
Evaluate
other
suppliers
Calibrate
machine
.
.
.
Quality
Control
Increase
quality
control
.
.
.
.
.
.
Quality
manager
.
.
.
.
.
.
.
.
.
Production
manager
.
.
.
.
.
.
.
.
.
1st
Round
2nd
Round
3rd
Round
4th
Round
5th
Round
6th
Round
9. SIX THINKING HATS
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Early in the 1980s, Dr. Edward De Bono introduced the concept of Six Thinking Hats.
Six Thinking Hats is a brainstorming technique which is used to incorporate parallel
thinking.
The Black Hat
– caution &
problems
The White Hat
– facts &
information
The Blue Hat
– managing
thinking
The Green Hat
– creativity &
solutions
The Red Hat
– feelings &
intuition
The Yellow Hat
– benefits &
advantages
10. SIX THINKING HATS - EXAMPLE
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Wearing the Yellow Hat,
however, the directors know
that, if the economy holds
up and their projections are
correct, the company stands
to make a healthy profit.
The chairman of the
meeting wears the Blue
Hat to keep the
discussion moving and
ideas flowing.
With Green Hat
thinking, they consider
whether they should
redesign the building to
make it more appealing.
With the Black Hat, they
wonder whether the
economic forecast could
be wrong.
Thinking with a Red Hat,
some of the directors say
that the proposed building
looks ugly and gloomy.
Wearing the White Hat,
they analyze the data
that they have.
The directors of a property company are considering whether they should build a new office block.
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SIX THINKING HATS– ADVANTAGES &
DISADVANTAGES
ADVANTAGES DISADVANTAGES
− Maximize productive collaboration
and minimize counterproductive
interaction/behavior
− View problems from new and
unusual angles
− Consider issues, problems, decisions,
and opportunities systematically
− Use Parallel Thinking as a group
or team to generate more, better
ideas and solutions
− Go beyond the obvious to discover
effective alternate solutions
− View problems from new and
unusual angles
− The process of thinking is very time-
consuming
− Some team-members prefer to think
alone rather than in a group
− It can be hard to adapt different
thinking roles.
− Conflicts can still arise between
people of different perspective