
15
2
Introduction to the Field
of Root Cause Analysis
WHAT IS ROOT CAUSE ANALYSIS (RCA)?
What a seemingly easy question to answer, yet no standard, generally accepted de-
nition of RCA exists in the industry today, of which we are aware. Technical societies,
regulatory bodies, and corporations have their own denitions, but it is rare to nd
two denitions that match. For the sake of having an anchor or benchmark denition,
we will use the denitions provided by the Department of Energy (DOE) Guideline
entitled “Root Cause Analysis Guidance Document (DOE-NE-STD-1004-92).”
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In the DOE document referenced above, the following is cited:
The basic reason ...