Criticality matrix
Encyclopedia
In operations research
and engineering
, a criticality matrix is a representation (often graphical) of failure mode
s along with their probabilities
and severities.
Operations research
Operations research is an interdisciplinary mathematical science that focuses on the effective use of technology by organizations...
and engineering
Engineering
Engineering is the discipline, art, skill and profession of acquiring and applying scientific, mathematical, economic, social, and practical knowledge, in order to design and build structures, machines, devices, systems, materials and processes that safely realize improvements to the lives of...
, a criticality matrix is a representation (often graphical) of failure mode
Failure mode
Failure causes are defects in design, process, quality, or part application, which are the underlying cause of a failure or which initiate a process which leads to failure. Where failure depends on the user of the product or process, then human error must be considered.-Component failure:A part...
s along with their probabilities
Probability
Probability is ordinarily used to describe an attitude of mind towards some proposition of whose truth we arenot certain. The proposition of interest is usually of the form "Will a specific event occur?" The attitude of mind is of the form "How certain are we that the event will occur?" The...
and severities.
Example
| Failure mode | Severity | Probability |
|---|---|---|
| Collision | High | Low |
| Engine failure | High | Low |
| Ice buildup | Medium | High |