If human performance is involved, the dictionary guides you through seven basic categories: : Were they available, accurate, and followed? Training : Did the worker know how to do the task safely? Quality Control : Were materials and tools up to standard?
The is a proprietary investigative tool designed by System Improvements, Inc. to help investigators consistently identify root causes by using a structured set of questions. Accessing the Dictionary PDF
A guide to help you find effective fixes, not just "retrain" people. TapRooT® Root Cause Analysis
The TapRooT® methodology follows a structured investigation process where the Root Cause Tree is used after facts are gathered.
: You are only allowed to check that root cause on your tree if your investigation evidence successfully answers "yes" to the mandatory criteria in the dictionary.
The dictionary serves as a guided expert system. Instead of relying on guesswork or the common "5 Whys" approach—which can be subjective—it uses a series of objective . These questions are tied directly to the nodes on the Root Cause Tree® Diagram , guiding the investigator to specific categories like:
When a major incident occurs in an industrial workplace, finding out why it happened is critical to preventing it from happening again. One of the most respected frameworks for this is the TapRooT® System, which relies heavily on its proprietary and the accompanying Root Cause Tree® Dictionary .
: Evaluates fatigue, distractions, and interface design.
: Investigates policies, standard operating procedures, and oversight.
Without the Dictionary, you might have concluded: "The fan failed → Replace the fan." With the Dictionary, you redesign the specification system.