Environmental Engineering Reference
In-Depth Information
tABle 8.1
summary of root cause Analysis methods
method
When to use
Advantages
disadvantages
remarks
Time.
consuming.and.
requires.
familiarity.
with.process.to.
be.effective
Requires.a.broad.
perspective.of.the.
event.to.identify.
unrelated.
problems
Helps.to.identify.
where.deviations.
from.acceptable.
methods.occurred
Events.and.
Causal.Factor.
Analysis
Use.for.multi-faceted.
problems.with.long.or.
complex.causal.factor.
chain
Provides.visual.
display.of.
analysis.process
Identiies.
probable.
contributors.to.
the.condition
Change.
Analysis
Use.when.cause.is.
obscure;.especially.
useful.in.evaluating.
equipment.failures
Simple.six-step.
process
Limited.value.
because.of.the.
danger.of.
accepting.wrong,.
“obvious”.answer
A.singular.
problem.
technique.that.
can.be.used.in.
support.of.a.
larger.
investigation
All.root.causes.
may.not.be.
identiied
Barrier.
Analysis
Use.to.identify.barrier.
and.equipment.failures.
and.procedural.or.
administrative.problems
Provides.
systematic.
approach
Requires.
familiarity.
with.process.to.
be.effective
This.process.is.
based.on.the.
MORT.Hazard/
Target.Concept
MORT/
Mini-MORT
Use.when.there.is.a.
shortage.of.experts.to.
ask.the.right.questions.
and.whenever.the.
problem.is.a.recurring.
one;.helpful.in.solving.
programmatic.problems
Can.be.used.with.
limited.prior.
training
Provides.a.list.of.
questions.for.
speciic.control.
and.management.
factors
May.only.
identify.area.of.
cause,.not.
speciic.causes
If.this.process.fails.
to.identify.
problem.areas,.
seek.additional.
help.or.use.
cause-and-effect.
analysis
Human.
Performance.
Evaluations.
(HPEs)
Use.whenever.people.
have.been.identiied.as.
being.involved.in.the.
problem.cause
Thorough.analysis
None.if.process.
is.closely.
followed
Requires.HPE.
training
Kepner-Tregoe
Use.for.major.concerns.
where.all.aspects.need.
thorough.analysis.
Highly.structured.
approach.that.
focuses.on.all.
aspects.of.the.
occurrence.and.
problem.
resolution
More.
comprehensive.
than.may.be.
needed
Requires.
Kepner-Tregoe.
training
Source:
. Courtesy.of.the.United.States.Department.of.Energy.
