Investor Presentaiton
Scientific
Method
Test hypotheses
based on
Investigation data,
to prove disprove
them, and
Iteratively
resolve to the final
hypothesis using
scientific
approaches.
BAKERRISK
Investigation Methodologies
Causal Factor
Identification
Negative events,
conditions, and
actions that
made major
contributions to the
incident. Tools
such as Barrier
Analysis and
Change Analysis
may be used.
Increasing Structure
Checklists
Review of causal
factors against
Investigative
checklists
to determine why
that factor existed.
A combined what-
if/checklist
approach may be
used.
Pre-Defined
Trees
Logic Trees
Ready-made tools.
Investigators apply
causal factors to
each branch in
turn, disregard
those branches
that are not
relevant to the
specific Incident.
Hazards 29 | CCPS Incident Investigation Book 3rd Edition | 23 May 2019 | 16:25-16:50
Tools using a
multiple cause,
system-oriented
approach to
determine root
causes integrated
with a PSM program.
E.g.: fault tree, event
tree, causal tree, why
tree.View entire presentation