About Calculations

RiskyProject has two types of calculations:

Baseline (deterministic) - The default calculation automatically performed when you modify a project schedule the timing and sequence of task within a project. A schedule contains tasks with dependencies, as well as other project information.. As this calculation occurs automatically, you do not need to press the Calculation button. This calculation uses the Base input parameters (duration Duration: The total span of working time required completing task or whole project. Task duration can be input in months, weeks, days, hours, and minutes, as it is specified in Options dialog box (Duration tab). Internally duration is calculated in hours. Duration is calculated using current calendar., start time, lag is the delay between the finish of the predecessor and the start of the successor task.) and without taking risks into account.
Probabilistic (Monte Carlo simulation) – Use this to calculate the project schedule and costs with uncertainties and risks.
Automatic Monte Carlo simulations for small tasks are enabled by default.

To enable/disable up the automatic Monte Carlo simulation for small tasks:

From the Tools menu, choose Options. The options dialog box opens.
Click the Calculations tab.
From the Default Calculation for Small Projects option box, select one of the two options:
Baseline Calculation only
Probabilistic Calculation (Monte Carlo simulations)

Click OK.

RiskyProject automatically determines which project is small based on your computer’s performance and the size of the project.

To run probabilistic calculations, you have two options:

Click the Calculation button on the Standard toolbar.
From the Project menu, choose Calculate. A progress bar opens indicated the number of current simulations completed.

You may cancel the probabilistic calculation at any time; however, if number of simulations performed is less than 20, no probabilistic results will be calculated.

Tips:

Minimum number of simulations is 100.
If you cancel a calculation after more than 20 simulations and generate results, use these with caution as the number of simulations run may be too small to give an accurate portrayal of the project’s risks and uncertainties.
If you try to perform Monte Carlo simulation without risks and uncertainties, simulations will not proceed as if risk and uncertainties are defined. •