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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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In-Depth: How Easily Biases Distort What We Believe (In The Workplace)

Scrum.org

When teams estimate work, hearing an initial estimate is likely to “anchor” further estimates. So when people are asked how much time something will take, and they are offered an initial estimate of 20 days, their own estimates will gravitate towards that number. . Examples in the workplace. Oxford: Oxford Univ.

2015 230
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A Compendium of Works to Increase the Probability of Project Success

Herding Cats

Agile Software Development for Government Software Intensive System of Systems (SISoS) , Boulder Agile Meetup, 27 July 2016. Integrating Agile Software Development with Earned Value Management , College of Performance Management, IPM Workshop, 2015. How to Develop Credible Cost & Schedule Estimate.

2003 54
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Microeconomics and Risk Management in Decision Making for Software Development

Herding Cats

Making changes late in the development cycle has significant impacts on the verification and validation of the system no matter the software development method. . A recent survey of 600 firms indicated that 35% of them had at least one "runaway' software project. Now To Risk Management. It's as simple as that.

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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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Decision Making in the Presence of Uncertainty

Herding Cats

There's another rash of Twitter posters supporting the conjecture that decisions can be made about how to spend other people's money without estimating the impact and outcome of that decision. Theory of Decision under Uncertainty, Itzhak Gilboa, July 2008. Software development decision making is a well studied subset of that field.

2008 44
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Real Options and Decision Making for ICT Projects

Herding Cats

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. "

2008 32