Agile Estimation: Why The Fibonacci Sequence Works

The Fibonacci sequence effectively aids in agile estimation by providing distinct numerical values that help teams make clearer distinctions in their estimates. Using either the traditional Fibonacci sequence or a modified version enhances the ability to differentiate between similar tasks, as numbers that are too close together can complicate the estimation process. For example, the modified Fibonacci sequence includes values such as 1, 2, 3, 5, 8, 13, 20, 40, and 100, which allows teams to avoid confusion when estimating tasks. Key Points: - Fibonacci sequence: Traditional (1, 2, 3, 5, 8, 13, 21) and modified (1, 2, 3, 5, 8, 13, 20, 40, 100) sequences used in Planning Poker. - Distinct estimates: Close numbers in estimation can lead to confusion; clearer distinctions improve accuracy. - Enhanced clarity: Modified Fibonacci helps teams to make more effective estimations by reducing ambiguity.