Foreword

“How long is it going to take?” “What is it going to cost?” “What did you base that on?”

Most project managers have heard those questions on a regular basis. We answer them based on what we know and the tools that we have on hand. It is our best-guess way of dealing with something really complicated. Then, we spend the rest of the project trying to live up to those commitments.

I have known Chris for many years now, and he has always had a fascination with estimating. How can you tell a swag from an educated guess, from a fact-based expert opinion? How can we use computing power to make sense of a swirling mess of metrics and variables, turning them into more reliable estimates? This book puts his life’s work into words in an attempt ...

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