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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.

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Estimating the Risk

Herding Cats

The idea of risk and its management and handling is a critical success factor for all software development. In order to make risk-informed decisions, we must estimate the outcomes and the impacts of those outcomes on future activities (cost, schedule, and technical performance of products and services). Related articles.

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Reading List for the Cone of Uncertainty

Herding Cats

The primary purpose of software estimation is not to predict a project’s outcome; it is to determine whether a project’s targets are realistic enough to allow the project to be controlled to meet them ? As more details get developed, the Cone converges to the actual value. Steve McConnell.

2012 48
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A Compendium of Works to Increase the Probability of Project Success

Herding Cats

Here are my collected works, presentations, briefings, journal papers, articles, white papers, and essays, used to increase the Probability of Project Success (PoPS) I've developed and applied over my career in the software-intensive system of systems domain. How to Develop Credible Cost & Schedule Estimate.

2003 54
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Misunderstanding Making Decisions in the Presence of Uncertainty

Herding Cats

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.

2003 46
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Resources for Cone of Uncertainty

Herding Cats

Seems there is still some confusion (intentional or accidental) about the Cone of Uncertainty and its purpose and its use in software development. 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. This letter states.

2007 34
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Risk Management Resources

Herding Cats

requires making estimates) ? This blog page is dedicated to the resources used to assess risks, their impacts, and handling strategies for software-intensive systems using traditional and agile development methods. 255, April 2010. 24, 2010. “A Estimation of Long?Term reducible and irreducible ? Kwak and J.