SIX SIGMA Glossary: Interrelationship Diagram

The Interrelationship Diagram is a team-based process improvement tool. Ideas gathered through, eg. affinity diagrams, are grouped in a circular pattern on a flip chart. Arrows are drawn to show the relationships between items, leading from Cause to Effect:

interrelationship diagram,

The number of arrows leading 'in' and 'out' of each item are counted and tabulated.

Items that have a high number of 'out' arrows are important drivers. A high number of 'in' arrows suggests important outcomes and candidates for measures of success.

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