There is an infinite numerical sequence, starting from 0 and 1, where the sum of two numbers produces the next number in the sequence. Thus the Fibonacci Sequence begins as follows: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34 …) Agile teams often use numbers from the Fibonacci Sequence to represent relative size when estimating. A reason that teams use numbers from the sequence is because each number in the series gets significantly greater than the earlier numbers in the sequence, which helps serve as an indicator that uncertainty increases as items get larger. Using Fibonacci Sequence numbers also helps dispel any notion that estimates are precise, since there is no set differential between numbers in the series, e.g., the numbers do not follow a pattern, like doubling or tripling.
Related Media
Fibonacci Sequence Video
Fibonacci Sequence Podcasts
Fibonacci Sequence Example
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Acknowledgements
Authored by Philip Rogers
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