Cross-Checking Results of FMEA and FTA

Results of Failure Modes and Effects Analysis (FMEA) and Fault Tree Analysis (FTA) of a system are often at odds because the two kinds of analysis are usually performed by different people using different approaches, and also because the analyses have different ground rules. However, consistency of results can be significantly improved with certain techniques that cross check these results and identify discrepancies. These techniques can be partially automated to significantly and efficiently improve analysis quality, accuracy, and thoroughness.

Topics covered:

  • What makes FMEA and FTA inconsistent
  • Setting up worksheets for cross checks
  • Running the software
  • Interpreting Results
  • Path Tracing
  • A Final Caveat

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