The dictionary is the "secret sauce" of the TapRooT® system. It works alongside the to provide a structured path for investigators: TapRooT : root cause tree dictionary - Internet Archive
: A digital copy of the 1999 dictionary available for borrowing.
These are the sub-categories. For example, under Procedures , the dictionary helps you distinguish between:
The dictionary acts as the "instruction manual" for the , ensuring that different investigators reach the same conclusions.
TapRooT® Root Cause Tree® Dictionary is a proprietary resource owned by System Improvements, Inc. while the physical tree and its accompanying dictionary are generally restricted to licensed users or training attendees, you can find several legitimate public and community-shared PDF versions for educational use: TapRooT® Root Cause Analysis Free PDF Resources Internet Archive : A full digital copy of the TapRooT: root cause tree dictionary is available for free borrowing and streaming. System Improvements (Official Guide) : A high-level PDF guide on using the TapRooT system covers the methodology and the role of the Root Cause Tree. Scribd Community Documents : Various users have uploaded TapRooT Methodology Overviews Root Cause Tree tutorials that provide insight into how the dictionary is structured. Academic & Safety Repositories overview of the Root Cause Tree methodology is hosted on Academia.edu. detailed application guide
Look under the "Equipment" branch. The Dictionary lists possible basic causes:
These describe what happened physically.