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Vansak Choi for KOSIGN

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Differences between Error, Defect, Failure and Risk

Error(오류) = Mistake by human

Defect(결함) = Fault = Bug

Failure(장애) = Defect + more = Issue = Incident

Risk(리스크) = probability of failure x business impact

They all look similar, but there are the some differences as above.

Somethings are added to the 'Defect' and becomes an 'Failure'
Somethings are added to the 'Failure' and becomes a 'Risk'.

In other words, the further down the 'Risk' is, the more comprehensive it becomes.

** Source: https://myinbox.tistory.com/4

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