Event analysis
3 important questions on Event analysis
Common denominators amongst major analytical techniques
o One does not seek for responsibilities but for solutions
o An accident is always a combinations of several factors
o On should retain only facts, no judgements nor interpretations
o They analysis is interesting only if it leads to the implementations of solutions
o The analysis of accidents is a collective work
o An accident is always a combinations of several factors
o On should retain only facts, no judgements nor interpretations
o They analysis is interesting only if it leads to the implementations of solutions
o The analysis of accidents is a collective work
What is causal tree analysis?
Causal tree analysis provides a means of analyzing the critical human errors and technical failures that have contributed to an incident or accident to determine the root causes.
It is graphical technique that is simple to perform and very flexible, allowing mapping out exactly what one thinks happened rather than being constrained to any accident causation model. The diagrams developed provide useful summaries to include in incident and accident reports that give people a good overview of the key issues
It is graphical technique that is simple to perform and very flexible, allowing mapping out exactly what one thinks happened rather than being constrained to any accident causation model. The diagrams developed provide useful summaries to include in incident and accident reports that give people a good overview of the key issues
What are the steps of causal tree analysis?
· Search for facts
o Without any judgement
o Without interpreting
o By treating each fact one by one
o One fact must be measurable and/or photographable
· Build the tree
o Begin with the last fact
o Develop branches by asking the three following questions
§ What is the direct cause which provoked this?
§ Was this cause necessary for the occurrence of that fact?
§ Was this cause sufficient to provoke the event?
· Search for measures
o Begin with the first fact
o Search measures for each fact
o Accept all ideas
· Define measures
o Without any judgement
o Without interpreting
o By treating each fact one by one
o One fact must be measurable and/or photographable
· Build the tree
o Begin with the last fact
o Develop branches by asking the three following questions
§ What is the direct cause which provoked this?
§ Was this cause necessary for the occurrence of that fact?
§ Was this cause sufficient to provoke the event?
· Search for measures
o Begin with the first fact
o Search measures for each fact
o Accept all ideas
· Define measures
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
