My issue with effort estimates is that it is taboo to report estimates with uncertainty (think how silly that sounds). I'll often give a low-end / high-end and the person asking for the estimate will tell me they want a single number. If you did this in physics you would get laughed and for good reason. It's bad science, and it's bad forecasting.
You should never claim better precision than you know. It's often more accurate to say "more than an hour but less than a week" than to say "6 hours". We learn scientific precision in middle school... why is modern workflow management still so bad at uncertainty propagation?
You should never claim better precision than you know. It's often more accurate to say "more than an hour but less than a week" than to say "6 hours". We learn scientific precision in middle school... why is modern workflow management still so bad at uncertainty propagation?