2005 Estimate Software Engineering 
Scrum.org
FEBRUARY 3, 2020
Why our brain is not built for software engineering. Although our brain is a marvel of evolution, it has not evolved to excel at the kind of knowledge work (Davenport, 2005) that we actually do most of the time. This will affect all estimates and predictions. This will affect all estimates and predictions.
Herding Cats
DECEMBER 16, 2017
The estimating of software development is both straightforward and complex. When it is suggested that estimating is hard, of no value, and unnecessary, always ask what principle is used to support that claim? Software Sizing and Estimating: Mk II FPA , Charles Symons, John Wiley & Sons, 1991. Don't hear one?
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Herding Cats
DECEMBER 3, 2017
Some feel that the cone does not provide any value for the work they do and does not match the reducing uncertainty in their estimates. First, the Cone of Uncertainty is a Principle used to define the needed reduction in the variances of estimates on Programs. Remember Risk Management is How Adults Manage Projects - Tim Lister.
Herding Cats
JANUARY 22, 2017
Barry Boehm's work in “Software Engineering Economics”. The Cone is a project management framework describing the uncertainty aspects of estimates (cost and schedule) and other project attributes (cost, schedule, and technical performance parameters). The BLUE bars are the probabilistic ranges of the current estimate date.
Herding Cats
JANUARY 17, 2017
Barry Boehm's work in “Software Engineering Economics”. The Cone is a project management framework describing the uncertainty aspects of estimates (cost and schedule) and other project attributes (cost, schedule, and technical performance parameters). The BLUE bars are the probabilistic ranges of the current estimate date.
Herding Cats
FEBRUARY 4, 2017
Barry Boehm's work in “Software Engineering Economics”. The Cone is a project management framework describing the uncertainty aspects of estimates (cost and schedule) and other project attributes (cost, schedule, and technical performance parameters). Estimates are needed but are subject to large level of uncertainty.
Herding Cats
FEBRUARY 9, 2019
40 - Estimation is a Problematic Practice of Companies Doing Dangerous Things. A #Noestimates advocate makes the claim that having a ±10% accuracy for estimates of cost and duration is a dangerous thing. Define the probabilistic ranges of the work in a single point estimate manner. There are databases for Function Points .
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