How long is a piece of string?
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Seb Rose engages in a Twitter discussion about estimating lengths. The canonical answer is that the length of a piece of string is twice the distance from the middle to the end. While relative estimation is advocated as an agile axiom, research does not necessarily prove people are better at relative than absolute estimation. Relative estimation still has value as a technique even if not proven superior in all cases. The discussion questions whether something appears small only because it is far away.
How long is a piece of string?
- 1. @sebrose Seb Rose How long is a piece of string?
- 2. @sebrose Canonical answer Twice the distance from the middle to the end. x 2
- 3. @sebrose Agile axiom Absolute estimation is hard
- 5. @sebrose
- 6. @sebrose 120 cm 40 cm60 cm 100 cm 70 cm
- 7. @sebrose ... these studies which have for a few years now given rise to the claim that "research shows that people are better at relative than absolute estimation" do not in fact seem to square with that claim. This doesn't entail that relative estimation doesn't work - only that it is not proven. http://guide.agilealliance.org/guide/relative.html
- 8. @sebrose 12 cm 4 cm 6 cm 10 cm 7 cm
- 9. @sebrose Is it small, or just far away?
- 10. @sebrose
- 11. @sebrose