A Tree Diagram is a chart that begins with one central item and then branches into more items and keeps branching until the line of inquiry begun with the central item has been exhausted.

Use: The tree diagram, with its branching steps, motivates the team to move from the general to the more specific in a systematic way. The tree diagram is useful to organize a team’s thinking about an issue so that the main ideas and relationships are immediately apparent.

Six Sigma Terminology

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