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A root cause is an initiating cause of either a condition or a causal chain that leads to an outcome or effect of interest. Commonly, root cause is used to describe the depth in the causal chain where an intervention could reasonably be implemented to improve performance or prevent an undesirable outcome.
In plain English a "root cause" is a "cause" (harmful factor) that is "root" (deep, basic, fundamental, underlying, initial or the like).
The term root cause has been used in professional journals as early as 1905.
Fantin (2014) describes the root cause as the result of the drill down root cause analysis required to discover which is the process that is failing, defining it as "MIN Process" (meaning a process that is Missing, Incomplete or Not followed)
- Forensic engineering
- Proximate and ultimate causation
- Root cause analysis
- RPR Problem Diagnosis
- "The Present State of Medical Practice in the Rhondda Valley". The Lancet. 166 (4290): 1507. 18 November 1905. doi:10.1016/S0140-6736(00)68499-4.
- Ivan Fantin (2014). Applied Problem Solving. Method, Applications, Root Causes, Countermeasures, Poka-Yoke and A3. How to make things happen to solve problems. Milan, Italy: Createspace, an Amazon company. ISBN 978-1499122282
- Pitagorsky, George. The Zen Approach to Project Management: Working from Your Center to Balance Expectations and Performance. IIL Publishing. p. 38. ISBN 9780970827692.