Progressive Estimating Accuracy
Accuracy improvement
- As we have seen from the different types of estimate
- Accuracy improves with the amount of information available
- Which in turn increases through the project life span
- This is shown graphically on the next page
- We call it the "Estimating Accuracy Trumpet"
- Note that all estimates are likely to be under rather than over the final result
- Because of the things that are overlooked!