What are the three time estimates in PERT?
Likewise, people ask, what is a pert estimate?
PERT (Program Evaluation Review Technique) is an estimation technique which was first developed and applied by United States Defence establishment for their Ballistic Missile development program. Any task filled with uncertainties can have a wide range of estimate in which the task actually will get completed.
Beside above, what are the three types of estimates used in three point estimating? There are two generally accepted formulas for three point estimates: Triangular Distribution. Beta Distribution.
- E = estimated cost.
- a = optimistic value.
- m = most likely value.
- b = pessimistic value.
Just so, how do you calculate most likely time in Pert?
Using the PERT Formula The PERT estimate (E) is based on a formula that includes your optimistic time estimate (O), your most likely time estimate (M) and your pessimistic time estimate (P). The basic equation is this: E = (O + 4M +P) / 6 .
What is PERT What is the formula you use when using PERT?
PERT calculates a weighted average as the PERT estimate by using the formula : Pert Estimate = (Optimistic + (4 X Most Likely) + Pessimistic)/6. By using the simple formula Sigma = (Pessimistic – Optimistic) / 6 we divide the graph in 6 equal blocks.