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Affinity and Relationship
Diagram
By
Dr.A.Nithya
New Seven Q.C. Tools
Affinity Diagrams
For Pinpointing the Problem in a Chaotic
Situation and Generating Solution Strategies
 Gathers large amounts of intertwined
verbal data (ideas, opinions, issues)
 Organizes the data into groups based on
natural relationship
 Makes it feasible for further analysis and to
find a solution to the problem.
Slide 1 0f 7
New Seven Q.C. Tools
Affinity Diagrams
Advantages of Affinity Diagrams
 Facilitates breakthrough thinking and
stimulate fresh ideas
 Permits the problem to be pinned down
accurately
 Ensures everyone clearly recognizes the
problem
 Incorporates opinions of entire group
Slide 2 0f 7
New Seven Q.C. Tools
Affinity Diagrams
Advantages of Affinity Diagrams (cont.)
 Fosters team spirit
 Raises everyone’s level of awareness
 Spurs to the group into action
Slide 3 0f 7
Topic
Affinity Statement
Data Card
Data Card
Data Card
Data Card
Affinity Statement
Data Card
Data Card
Data Card
Data Card
Affinity Statement
Data Card
Data Card
Data Card
Affinity Statement
Data Card
Data Card
Data Card
Data Card
Data Card Data Card
New Seven Q.C. Tools
Affinity Diagrams
Constructing an Affinity Diagram
Group Method Approach
Slide 4 0f 7
 Select a topic
 Collect verbal data by brainstorming
 Discuss info collected until everyone
understands it thoroughly
 Write each item on separate data card
 Spread out all cards on table
New Seven Q.C. Tools
Affinity Diagrams
Constructing an Affinity Diagram
Group Method Approach (cont.)
Slide 5 0f 7
 Move data cards into groups of similar
themes (natural affinity for each other)
 Combine statements on data cards to new
Affinity statement
 Make new card with Affinity statement
 Continue to combine until less than 5
groups
New Seven Q.C. Tools
Affinity Diagrams
Constructing an Affinity Diagram
Group Method Approach (cont.)
Slide 6 0f 7
 Lay the groups outs, keeping the affinity
clusters together
Next, complete the diagram
New Seven Q.C. Tools
Affinity Diagrams
Completing an Affinity Diagram
Slide 7 0f 7
Topic
Affinity Statement
DataCard
Data Card
Data Card
Data Card
Affinity Statement
Data Card
Data Card
Data Card
Data Card
Affinity Statement
Data Card
Data Card
Data Card
Affinity Statement
Data Card
Data Card
Data Card
Data Card
Data Card Data Card
Source: Nayatani, Y., The Seven New QC Tools (Tokyo, Japan, 3A Corporation, 1984)
New Seven Q.C. Tools
Relations Diagrams
For Finding Solutions Strategies by Clarifying
Relationships with Complex Interrelated Causes
 Resolves tangled issues by unraveling the
logical connection
 Allows for “Multi-directional” thinking
rather than linear
 Also known as Interrelationship diagrams
Slide 1 0f 7
New Seven Q.C. Tools
Relations Diagrams
Advantages of Relations Diagrams
 Useful at planning stage for obtaining
perspective on overall situation
 Facilitates consensus among team
 Assists to develop and change people’s
thinking
 Enables priorities to be identified accurately
Slide 2 0f 7
New Seven Q.C. Tools
Relations Diagrams
Advantages of Relations Diagrams (cont.)
 Makes the problem recognizable by clarifying
the relationships among causes
Slide 3 0f 7
Why doesn’t
X happen?
Primary Cause
Primary Cause
Primary Cause
Primary Cause
Tertiary
Cause
Secondary
Cause
Secondary
Cause
Secondary
Cause
Secondary
Cause
Tertiary
Cause
4th level
Cause
Tertiary
Cause
Tertiary
Cause
4th level
Cause
5th level
Cause
6th level
Cause
Tertiary
Cause
Secondary
Cause
New Seven Q.C. Tools
Relations Diagrams
Constructing a Relations Diagram
Group Method Approach
Slide 4 0f 7
 Express the problem in form of “Why isn’t
something happening?”
 Each member lists 5 causes affecting
problem
 Discuss info collected until everyone
understands it thoroughly
 Write each item on a card
New Seven Q.C. Tools
Relations Diagrams
Constructing a Relations Diagram
Group Method Approach (cont.)
Slide 5 0f 7
 Move cards into similar groups
 Asking why, explore the cause-effect
relationships, and divide the cards into
primary, secondary and tertiary causes
 Connect all cards by these relationships
 Further discuss until all possible causes
have been identified

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Affinity and relationship diagram

  • 2. New Seven Q.C. Tools Affinity Diagrams For Pinpointing the Problem in a Chaotic Situation and Generating Solution Strategies  Gathers large amounts of intertwined verbal data (ideas, opinions, issues)  Organizes the data into groups based on natural relationship  Makes it feasible for further analysis and to find a solution to the problem. Slide 1 0f 7
  • 3. New Seven Q.C. Tools Affinity Diagrams Advantages of Affinity Diagrams  Facilitates breakthrough thinking and stimulate fresh ideas  Permits the problem to be pinned down accurately  Ensures everyone clearly recognizes the problem  Incorporates opinions of entire group Slide 2 0f 7
  • 4. New Seven Q.C. Tools Affinity Diagrams Advantages of Affinity Diagrams (cont.)  Fosters team spirit  Raises everyone’s level of awareness  Spurs to the group into action Slide 3 0f 7 Topic Affinity Statement Data Card Data Card Data Card Data Card Affinity Statement Data Card Data Card Data Card Data Card Affinity Statement Data Card Data Card Data Card Affinity Statement Data Card Data Card Data Card Data Card Data Card Data Card
  • 5. New Seven Q.C. Tools Affinity Diagrams Constructing an Affinity Diagram Group Method Approach Slide 4 0f 7  Select a topic  Collect verbal data by brainstorming  Discuss info collected until everyone understands it thoroughly  Write each item on separate data card  Spread out all cards on table
  • 6. New Seven Q.C. Tools Affinity Diagrams Constructing an Affinity Diagram Group Method Approach (cont.) Slide 5 0f 7  Move data cards into groups of similar themes (natural affinity for each other)  Combine statements on data cards to new Affinity statement  Make new card with Affinity statement  Continue to combine until less than 5 groups
  • 7. New Seven Q.C. Tools Affinity Diagrams Constructing an Affinity Diagram Group Method Approach (cont.) Slide 6 0f 7  Lay the groups outs, keeping the affinity clusters together Next, complete the diagram
  • 8. New Seven Q.C. Tools Affinity Diagrams Completing an Affinity Diagram Slide 7 0f 7 Topic Affinity Statement DataCard Data Card Data Card Data Card Affinity Statement Data Card Data Card Data Card Data Card Affinity Statement Data Card Data Card Data Card Affinity Statement Data Card Data Card Data Card Data Card Data Card Data Card Source: Nayatani, Y., The Seven New QC Tools (Tokyo, Japan, 3A Corporation, 1984)
  • 9. New Seven Q.C. Tools Relations Diagrams For Finding Solutions Strategies by Clarifying Relationships with Complex Interrelated Causes  Resolves tangled issues by unraveling the logical connection  Allows for “Multi-directional” thinking rather than linear  Also known as Interrelationship diagrams Slide 1 0f 7
  • 10. New Seven Q.C. Tools Relations Diagrams Advantages of Relations Diagrams  Useful at planning stage for obtaining perspective on overall situation  Facilitates consensus among team  Assists to develop and change people’s thinking  Enables priorities to be identified accurately Slide 2 0f 7
  • 11. New Seven Q.C. Tools Relations Diagrams Advantages of Relations Diagrams (cont.)  Makes the problem recognizable by clarifying the relationships among causes Slide 3 0f 7 Why doesn’t X happen? Primary Cause Primary Cause Primary Cause Primary Cause Tertiary Cause Secondary Cause Secondary Cause Secondary Cause Secondary Cause Tertiary Cause 4th level Cause Tertiary Cause Tertiary Cause 4th level Cause 5th level Cause 6th level Cause Tertiary Cause Secondary Cause
  • 12. New Seven Q.C. Tools Relations Diagrams Constructing a Relations Diagram Group Method Approach Slide 4 0f 7  Express the problem in form of “Why isn’t something happening?”  Each member lists 5 causes affecting problem  Discuss info collected until everyone understands it thoroughly  Write each item on a card
  • 13. New Seven Q.C. Tools Relations Diagrams Constructing a Relations Diagram Group Method Approach (cont.) Slide 5 0f 7  Move cards into similar groups  Asking why, explore the cause-effect relationships, and divide the cards into primary, secondary and tertiary causes  Connect all cards by these relationships  Further discuss until all possible causes have been identified