Quantified risk assessment techniques – part 3 (fault tree analysis – FTA)

A health and safety briefing provided by the IET.

This is the third briefing note to describe a specific risk assessment technique, Fault Tree Analysis - FTA. It must be emphasised that this brief treatment is intended to be illustrative rather than definitive.

This is a graphical technique that provides a systematic description of the combinations of possible occurrences in a system, which can result in an undesirable outcome.  This method can combine hardware failures and human failures.

Other Health and Safety Briefings have discussed Failure Modes and Effects Analysis and Event Tree Analysis:

  • Risk Assessment Techniques - Part 1 Failure Modes and Effects Analysis – FMEA
  • Risk Assessment Techniques - Part 2 Event Tree Analysis - ETA