What is noise in software estimates? Noise is the variability in human judgements, either between people or when people disagree with themselves. With software estimates, this is the difference between people's estimates, or unjustified changes to an estimate. For example, I led a small project with 2 other devs to add a feature to a system. At the outset we wrote a short design doc, and I asked the other devs to estimate how long it would take until the customer got the feature. With the sam...
