Relative estimation

…one or more development teams working on collaborative product discovery.

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The idea of relative estimating being better than absolute is not merely a premise. It has been shown by Lederer and Prasad in “A Causal Model for Software Cost Estimating Error” (1998) and Vicinanza et al. in “Software Effort Estimation: An Exploratory Study of Expert Performance” (1991).

Therefore:

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Sources

• http://www.mountaingoatsoftware.com/blog/establishing-a-common-baseline-for-story-points

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