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Extreme Programming Installed by Chet Hendrickson, Ann Anderson, Ron Jeffries

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Estimate the Entire Project as Accurately as Possible

Estimate the project by breaking it down into "stories" that are small enough to understand and to estimate in week-sized chunks.

Estimate the stories by breaking them down into "tasks" that are small enough to understand and to estimate in day-sized chunks.

Estimate the tasks one at a time, and watch your performance to improve your accuracy.

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