SRA

Question 1

What are the four sensitivity measures used in an SRA?

Answer 1

1. CI: Criticality Index
2. SI: Significance Index
3. SSI: Schedule Sensitivity Index
4. CRI: Cruciality Index

Question 2

What are the three different ways to measure the CRI?

Answer 2

1. Pearson’s product-moment correlation coefficient
2. Kendall’s tau rank correlation coefficient
3. Spearman’s rank correlation coefficient

Question 3

What does CI measures?

Answer 3

The Criticality Index measures the probability that an activity is part of the critical path.

Question 3

What does SI measures?

Answer 3

The Significance Index measures the relative importance of an activity.

Question 4

What does SSI measures?

Answer 4

The Schedule Sensitivity Index measures the relative importance of an activity taking the CI into account.

Question 5

What does CRI measures?

Answer 5

The Cruciality Index measures the correlation between the activity duration and the total project duration.

Question 6

What’s the difference between sample and population standard deviation?

Answer 6

Sample handles the data as if it was one sample => divide sum of squares of the deviations by number of datapoints - 1

Population => divide by number of datapoints