The dictionary entry includes a list of proven fixes: Revise the Management of Change (MOC) form to include peak ambient temperature checks.
Without the Dictionary, you might have concluded: "The fan failed → Replace the fan." With the Dictionary, you redesign the specification system. | Feature | TapRooT® Root Cause Tree Dictionary | 5 Whys | Fishbone (Ishikawa) | | :--- | :--- | :--- | :--- | | Structure | Hierarchical tree (yes/no) | Linear | Categorical | | Root Cause Depth | 100+ specific causes | 5 generic levels | No fixed depth | | Dictionary/Aid | Full definitions & fixes | None | None | | Free PDF Available? | Partial (official) / Full (unofficial academic) | Yes (any template) | Yes (any template) | | Best for | Complex, recurring failures | Simple, obvious errors | Brainstorming | taproot root cause tree dictionary pdf free
The motor failed because a cooling fan stopped. That’s a Causal Factor (Equipment Malfunction). The dictionary entry includes a list of proven
A conveyor belt motor overheated and caught fire. No injuries, but $500k damage. | Partial (official) / Full (unofficial academic) |
Enter the . Developed by System Improvements, Inc., TapRooT® is a sophisticated, evidence-based process for finding the real causes of problems. At its heart lies a visual, hierarchical tool: The Root Cause Tree® . And the master key to that tree is the Root Cause Tree Dictionary .
Start with the official TapRooT® free resources or the DOE Handbook PDF. Your next investigation will never be the same. Disclaimer: This article is for informational purposes. TapRooT® and Root Cause Tree® are registered trademarks of System Improvements, Inc. Always respect intellectual property rights and seek official licenses for commercial use.
From the Dictionary: Root Cause 4.1.1 – Inadequate Specification Process (missing environmental variables in design review).