Risk Priority Number (RPN) and/or Criticality Analysis Supported by Xfmea

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Xfmea
FMEA and FMECA Software

Product Features (Page 2)

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Risk Analysis: RPNs and Criticality Analysis

ReliaSoft's Xfmea software supports the Risk Priority Number (RPN), Quantitative Criticality Analysis and Qualitative Criticality Analysis methods for risk assessment, with a host of features designed to facilitate decision-making based on analysis results.

Risk Priority Numbers (RPNs)
The software provides automatic RPN calculation for both initial and revised RPNs as well as optional automatic "roll-up" capability to calculate RPNs for other analysis levels (such as Item or Failure) based on the RPNs for the potential causes of failure. The software also calculates the percent reduction in RPN from initial to revised ratings, provides reports of issues ranked by RPN and generates a variety of charts and graphs based on ratings and calculated RPNs. The Severity x Occurrence (SxO) metric is also supported.

Xfmea is shipped with an extensive array of pre-defined rating scales for Severity, Occurrence and Detection and also allows you to create and manage your own rating scales.

The Priority Highlights feature allows you to highlight portions of the analysis with colors that represent High, Medium and Low priority issues based on RPN, SxO or individual Severity, Occurrence or Detection ratings.

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Criticality Analysis Based on MIL-STD-1629A
The software’s Criticality Analysis utility supports both the Quantitative and Qualitative Criticality Analysis methods described in MIL-STD-1629A and generates a complete set of charts and reports, including Criticality Matrix charts.

For quantitative analyses, the utility automatically calculates Mode Criticalities and Item Criticalities based on your inputs. For items that have been defined with a time-dependent failure distribution, the software also automatically calculates Item Unreliability for the specified operating time.

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