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Agile Estimating and Planning by Mike Cohn

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Chapter 8. Choosing between Story Points and Ideal Days

“If you tell people where to go, but not how to get there, you’ll be amazed at the results.”

—General George S. Patton

As measures of size, story points and ideal days each have their advantages. To help you decide which one to use, this chapter outlines the key considerations in favor of each approach.

Considerations Favoring Story Points

This section outlines the key points in favor of estimating in story points. These include

Story points help drive cross-functional behavior.

Story-point estimates do not decay.

Story points are a pure measure of size.

Estimating in story points typically is faster.

My ideal days are not your ideal days.

Story Points Help Drive Cross-Functional ...

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