Chapter 8. Estimation
Contents
8.1 The Software-Estimation Story
8.2 Estimation-Process Overview
8.3 Size Estimation
8.4 Effort Estimation
8.5 Schedule Estimation
8.6 Ballpark Schedule Estimates
8.7 Estimate Refinement
Related Topics
Scheduling: Chapter 9
Measurement: Chapter 26
50/50 scheduling: Odds of Completing on Time
SOME ESTIMATES ARE CREATED CAREFULLY, and others are created by seat-of-the-pants guesses. Most projects overshoot their estimated schedules by anywhere from 25 to 100 percent, but a few organizations have achieved schedule-prediction accuracies to within 10 percent, and 5 percent is not unheard of (Jones 1994).
An accurate schedule estimate ...
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