A detailed reference that defines every node on the tree with specific "Yes/No" questions.
For every category on the tree, the Dictionary provides a list of questions. Example Application of TapRooT® - Flight Safety Foundation
The is a cornerstone of the TapRooT® Root Cause Analysis (RCA) system, serving as the "expert system" that guides investigators to consistent and actionable conclusions. While the Root Cause Tree® Diagram provides a visual map, the Dictionary provides the precise definitions and diagnostic questions necessary to remove investigator bias and ensure rigorous analysis. Understanding the TapRooT® System