Defining uncertainties for lags

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Fer23
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Defining uncertainties for lags

Postby Fer23 » Mon Feb 27, 2017 11:49 am

Do you have statistical distributions for lags and how are they defined?
Project risk management, decision and risk analysis

Intaver Support
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Re: Defining uncertainties for lags

Postby Intaver Support » Mon Feb 27, 2017 11:54 am

Yes, if you want to define a lag with uncertainty (has a most likely, low and high estimates) , you can add this to the predecessor in the Task Information > Predecessors tab.

When you create a predecessor link to a task, open the Task Information dialog box and click the Predecessors tab. Here you can add the Low, Base, and High estimates for the lag as well as select the statistical distribution type.

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TonyR
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Re: Defining uncertainties for lags

Postby TonyR » Sat May 20, 2017 6:28 am

The issue here you cannot define any statistical distribution rather than uniform and triangular. I believe this is done to simplify everything because otherwise it would require a form to define distribution parameters. Uniform and triangular distributions don't require any parameters rather than low, base, and high lags.

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Re: Defining uncertainties for lags

Postby Intaver Support » Sat May 20, 2017 6:36 am

It is correct. RiskyProject uses forms (dialogs) to define distributions for multiple parameters, for example remaining duration. But for lags it does not have such dialog because very few people actually use it.
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