2008 Estimate Software Engineering 
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?
Herding Cats
MARCH 11, 2017
What happens if you shift focus from "accurate estimation" to "reliably shipping by a date"? . If your project has no uncertainty, there is no need to estimate. All estimates have precision and accuracy. Deciding how much precision and accuracy is needed for a credible estimate is critical to the success of that decision.
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Herding Cats
APRIL 13, 2018
Estimation locks down choices early through upfront t decision making, #NoEstimates preserves options. This is the same paradigm of Agile software development where responding to change over following the plan is part of the original manifesto. Aligning Software Investment Decisions with the Markets ," Hakan Erdogmus. "
Herding Cats
MARCH 11, 2018
If we look at the discipline of software engineering, we see that the microeconomics branch of economics deals more with the types of decisions we need to make as software engineers or managers. Software engineering economics." IEEE Transactions of Software Engineering, 1 (1984): 4-21.
Herding Cats
DECEMBER 8, 2017
This can be the confidence in the estimate for any variable. But is can be ANY variance for the program, including confidence in the estimates of future performance - cost, schedule, or technical performance. This usually results in a project's actual costs far outrunning the optimistic estimates and creating a large overrun.
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.
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