Remove 2005 Remove Estimate Remove Software Engineering
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Basis of Estimating Software Development

Herding Cats

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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Thinking By Sprinting: What Cognitive Science Tells Us About Why Scrum Works

Scrum.org

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.

2002 205
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Resources for Cone of Uncertainty

Herding Cats

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.

2007 34
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Cone of Uncertainty - Part Cinq

Herding Cats

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.

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Cone of Uncertainty - Part Trois

Herding Cats

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.

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Cone of Uncertainty - Part Cinq (Updated)

Herding Cats

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.

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DDSTOP The Saga Continues

Herding Cats

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 .