2. A simpler form of an FMECA is an FMEA (Failure Modes Effects Analysis). An FMEA does not

consider how often a failure occurs, but only evaluates its effect and severity when it does occur.

An FMECA evaluates both severity and probability of occurrence, and sometimes one additional

parameter.

A Risk Profile Number (RPN) analysis always brings this additional parameter into the analysis.

Besides severity and probability of occurrence, what additional parameter does

an RPN analysis consider?

Discuss why this additional parameter is important, especially in critical

applications or missions.