Three Point Estimate Formulas

three point estimate

Quick Reference on Three Point Estimate I have written a series of articles on Three Point Estimate and related concepts. Before reading this, you should look at my first article of the series. I have explained the basic concept of Three Point Estimate in my first article. I have also explained that PERT is not … Read more

Did You Know That A project Is Scheduled To FAIL?

A project is scheduled to FAIL from start. This is a very strong statement albeit true. I have noticed this phenomenon many times during my experience. Let me explain. Project Managers rarely understand good scheduling concepts/techniques. Even if they understand, good concepts/techniques are rarely used while developing project schedule. What are good scheduling concepts/techniques? These … Read more

Variance And Standard Deviation In PERT Formula [PMP]

pert formula variance standard deviation

You might be looking to understand the usage of variance and standard deviation in PERT formula. PERT is an acronym for Program Evaluation and Review technique. This technique is used to determine duration and cost estimates of a task. In this technique, a weighted average (mean) of three different estimates is used to determine the … Read more

PERT Formula & Three Point Estimating: The Ultimate Guide

pert formula three point estimating

Three point estimating can be done in two ways. First one uses PERT formula and the second one calculates simple average of three different estimates viz. Optimistic, Pessimistic, and Most Likely. These techniques are used both for duration and cost estimation. PERT (Program Evaluation and Review Technique) is based on beta distribution technique and uses … Read more