private static double CalculateFibonacciRisk(
IEnumerable <ActivityModel> activities,
ActivitySeverityLookup activitySeverityLookup)
{
if (activities == null)
{
throw new ArgumentNullException(nameof(activities));
}
if (activitySeverityLookup == null)
{
throw new ArgumentNullException(nameof(activitySeverityLookup));
}
double numerator = activities.Sum(activity => activitySeverityLookup.FindSlackFibonacciWeight(activity.TotalSlack));
double denominator = activitySeverityLookup.CriticalFibonacciWeight() * activities.Count();
return(numerator / denominator);
}
private static double CalculateGeometricFibonacciRisk(
IEnumerable <ActivityModel> activities,
ActivitySeverityLookup activitySeverityLookup)
{
if (activities == null)
{
throw new ArgumentNullException(nameof(activities));
}
if (activitySeverityLookup == null)
{
throw new ArgumentNullException(nameof(activitySeverityLookup));
}
double numerator = 1.0;
foreach (ActivityModel activity in activities)
{
numerator *= activitySeverityLookup.FindSlackFibonacciWeight(activity.TotalSlack);
}
numerator = Math.Pow(numerator, 1.0 / activities.Count());
double denominator = activitySeverityLookup.CriticalFibonacciWeight();
return(numerator / denominator);
}
