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Project Management & Agile · Foundational

Relative Estimation

Estimating items by comparing them to each other rather than in absolute units.

Definition

People are better at comparing sizes than predicting absolute durations. Techniques include story points, T-shirt sizing, affinity estimating, and planning poker.

Example

The team agrees a login story is about half the size of a search story.

Exam tip

Relative estimation is faster and more consistent than absolute estimation.

Related terms