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Project Management the Agile Way by John C. Goodpasture

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7

Estimating Cost and Schedule

There are no facts about the future, only estimates.1

It is very difficult to make a vigorous, plausible, job-risking defense of an estimate that is derived by no quantitative method, supported by little data, and certified chiefly by the hunches of the managers.

Dr. Fred P. Brooks, Jr.2

Module 1: The Nature of Estimates

Making a judgment about the future, even with uncertainty

Module 1—Objectives

  • Discuss and explain the unique aspects of agile estimates
  • Discuss and explain how complexity finds its way into agile estimates
  • Discuss and explain why good enough is good enough

Introduction to Estimates

So, what’s an estimate? We have the dictionary version easy enough, as given via google.com:

Estimate: An approximate ...

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