System Safety Assessment

  Functional Hazard Assessment (FHA)
  Failure Mode and Effects Analysis (FMEA)
  Failure Mode and Effects Summary (FMES)
  Preliminary System Safety Assessment (PSSA)
  System Safety Assessment (SSA)
  Common Cause Analysis (CCA)
 ü Common Mode Analysis (CMA)
 ü  Particular Risk Analysis (PRA)
 ü  Zonal Safety Analysis (ZSA)
  Architectural Mitigation Analyses
  DAL Assessments / Justification reports
 

Reliability Engineering

  Reliability Management / Program Office
  Reliability Program Plans
  Reliability Modeling
  Reliability Development & Accelerated-Life
  Failure Rate / Reliability Predictions
  Failure Reporting, Analysis & Corrective Action
  System (FRACAS)

Technical Points / Summary

? Generally speaking, we don't predict MTBF so much as we predict piece part and unit failure rate (usually per million operating hours). But even that's changing ... with RiAC's 217Plus™ which factors in periods of dormancy (i.e. non-operation) and generate predictions in calendar hours instead of operating hours.

? 217Plus also takes into consideration things like the CMMI level of your organization in predicting failure rate of your products. 217Plus seems to be a step forward but for most applications which still require predictions to be presented in flight hours, the analyst needs to factor in duty cycle in order to convert from calendar hours.