Fishbone diagram and six thinking hats

1. SUBMITTED BY
DHRUVE JAIN

3.  Dr. Kaoru Ishikawa, a Japanese quality control statistician,
invented the fishbone diagram. Therefore, it may be
referred to as the Ishikawa diagram.
 It is also known as cause and effect diagram.
 The fishbone diagram is an analysis tool that provides a
systematic way of looking at effects and the causes.
 The purpose of the fishbone diagram is categorizing the
many potential causes of problems or issues in an orderly
way and in identifying root causes.

4.  It can be used to study a problem/issue and to determine
the root cause.
 It can be used to study all the possible reasons why a
process is beginning to have difficulties, problems, or
breakdowns.
 It can be used to study why a process is not performing
properly or producing the desired results.

5.  Identify the problem- figure out the problem as
“poor quality” and put it at the head of fish bone
 Work out the major factors involved- identify the
factors that may be part of the problem. These may be
systems, equipment, materials, external forces, people.
 Identify possible causes- Main causes may be
divided into sub causes which form the fine lines that
run off the major bones.
 Analyze your diagram- analyze the diagram and
further action can be taken according to that.

6.  For finding problems, the 5 M's are a useful tool in finding
possible causes to a problem.
 Manpower
 Materials
 Methods
 Machines
 Measurement

7.  For problems that are being examined in the service
industry, the 5 P's can be used to develop the Cause Effect
diagram
 People (employees)
 Provisions (supplies)
 Procedures (processes)
 Place (environment)
 Patrons (customers)

10.  This was developed by Edward de Bono in 1980s helps
in experiment with different ways of thinking and to
see ides from different angles
 It forces us to move outside of our habitual thinking
style, and helps us to get out a more rounded view of
situation
 It is a simple effective parallel thinking process that
helps people be more productive , focused and
mindfully involved

11.  Many people think from a very rational, positive view
point. Often they , may fail to look at a problem from
an emotional , intuitive, creative or negative
viewpoint. Same may occur in case of person having
negative view.
 The six metaphorical thinking hats represents six
types of thinking. we wear one of these hats to help us
thinking about an idea in a particular way

12.  White hat – facts and figures
 Red hat – emotional view
 Black hat- negative side
 Yellow hat – positive side
 Green hat – creative side
 Blue hat – organizing view

13.  Focus on the data available
 Looking at the information available
 What we can learn from it
 Looking for gaps in knowledge
 Try to fill these gaps
 What are the required information

14.  Decision using intuition
 Decision by gut reaction and emotion
 How people will respond emotionally
 No justification , reasons or basis . All decisions are
emotional at the end

15.  Looking at things pessimistically , cautiously and
defensively.
 Try to find what ideas might not work
 Figure out the weak points
 Downsides and risks
 It allows to eliminate weak points
 This must be always logical . Overuse of it may send person
in a zone where he always finds faults

16.  It shows the positive and optimistic viewpoint.
 Benefits of the decision and value of it.
 Seeing the brighter, sunny side of situations.
 Yellow hat thinking helps to keep going when everything
seems difficult.

17.  Creative solution of problem.
 Freewheeling way of thinking , innovations
 New concepts and new perceptions.
 focus on alternatives .
 out of the box thinking.
 Available new options.
 Statements of provocation and investigation

18.  focus on control and progression
 what is the subject? what are we thinking about? what is
the goal?
 what else should I consider
 it is called the hat of leader
 It is used either at the start or end of the discussion

19.  Use any hat as often as needed
 It can be used in any sequence
 Not necessary to use every hat
 Have a time under each hat
 Requires discipline from each person
 It can be used either by individual or groups

21.  www.wikepedia.org
 www.isixsigma.com
 www.debonoforschools.com
 www.debonothinkingsystems.com