Defining statistical distribution for risk outcomes
To enable probabilistic risk outcomes:
- Click the Schedule tab. In the Settings group, click Options.
- Click the Risk tab.
- Select the Enable statistical distribution for risk outcome checkbox.
Once enabled, this setting is the default for all RiskyProject files on your computer.
-
Click the Risks tab. In the Risk Views
group, click Risk Register.
- Open the Risk Information dialog box.
-
Click the Probabilities and Outcomes tab for qualitative
risk analysis (if you don'tr have project schedule) or Assign to tasks or
resources for quantitative analysis
-
Right click on risk alternative ID and select Distribution of risk
outcomes
-
Select the distribution from the Distribution list. If you select Undefined, the
base value will be used for all iterations.
-
Define the distribution parameters. The Probability Density chart is
automatically updated. You can adjust distribution parameters using the sliders.
-
If you use a custom or discrete distribution, a grid opens. The grid will allow
you to define points (or intervals for discrete distributions) and associated
with each point (interval).
-
If you select Normal or Lognormal, you must select
the Low and High probability range (P1 and P99, P5 and P95 or P10 and P90).
These are "cut-off" parameters; meaning that duration, cost, or start time
cannot go beyond these values.
If you perform qualitative risk analysis in Risk Register you can view:
-
Impact (pre-mitigation or post-mitigation) for all categories: it is calculated as mean value of you have for
probabilistic risk outcome.
-
Impact for individual categories (e.g. Impact: Cost or Impact: Schedule): it is input base value of Outome
See also
About Risk Assignments
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