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Definition

set of conditions or actions that occur at the beginning of a sequence of events that result in the initiation of a failure mode

 

This is a concrete item and can be implemented directly

Term: root cause; 
Plural: root causes; 

Notes

Examples

Diagrammatic representation

Simple graph - root cause

Required associations

a number of events has one or more root causes

Optional associations

Generalisations

root cause

Specialisations

root cause