Gianna,
For this type of modeling we recommend using mutually exclusive alternatives. These are alternative outcomes of the same risk. In your case you would have 3 alternatives of the "rework" risk. And requires a little more analysis to determine the probability for each alternative.
In this example we will give it a 20/60/20 probability, roughly a triangular distribution. In this case probabilities would be equal to 6%, 8%, 6% respectively.
1.Create an activity that has duration of 5 week (low), 7week (base), 9 week (high). In the Distributions tab of the Task information dialog, give duration a triangular distribution.
2. Create risk "Rework" in the register.
To assign the risk to the task:
3. Open the Risk Information dialog box, assign to tasks or resources tab.
4. Click the Task ID in the assigned to tasks grid. This will enable the assignment grid on the right.
4. Create first alternative Chance = 6% Outcome Fixed Delay 1 week
5. Create 2nd alternative Chance = 8% Outcome Fixed Delay 3 week
6. Create 34d alternative Chance = 6% Outcome Fixed Delay 4 week
We are looking at couple of alternative ways of providing easier modeling of distributions for risk assignment. Currently the benefit of the mutually exclusive alternatives is that it allows user the most flexibility in modeling risks. We realize that while this allows for wider range of risk modeling, it also adds additional work to users if all they want to do is model a risk event with a standard 3 pt distribution. We will be posting possible workflows to address this in the near future.
Intaver support
GianniPiazza wrote:Hello,
I have a question regarding modelling a risk.
I have a task with a triangular spread ( 5 week, 7wek, 9 week).
On that task I have risk of 20% that rework may occur. This rework also has a triangular distribution (1 week, 3 week, 4 week).
Does someone knows how to models this in Riskyproject?
Thank you.
Best regards,
Gianni
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