# EX0-008 Q&A: What is the technique called when estimating story points?

## Question

A team is estimating story points. They estimate that the story falls between a large (13) and a medium (5) and they assign a story point of 8.

What is this technique called?
A. Affinity estimation
B. Fibonacci estimation
C. Triangulation

C. Triangulation

## Explanation

The technique used by the team to estimate the story points, where they estimate that the story falls between a large (13) and a medium (5) and assign a story point of 8, is called:

C. Triangulation

Let’s provide a comprehensive explanation of the technique:

A. Affinity estimation:
Affinity estimation, also known as bucket estimation, is a technique where items are grouped into categories or buckets based on their perceived size or complexity. It is often used for high-level estimation or prioritization. In affinity estimation, the team does not assign specific numerical values like story points but rather categorizes items into relative sizes.

B. Fibonacci estimation:
Fibonacci estimation, also known as the Fibonacci sequence or sequence-based estimation, is a technique where story points are assigned based on the Fibonacci sequence (e.g., 1, 2, 3, 5, 8, 13, etc.). It is a popular technique in Agile and Scrum for relative estimation. However, in the given scenario, the team did not follow the Fibonacci sequence for estimating the story points.

C. Triangulation:
Triangulation is a technique used when there is uncertainty or ambiguity in estimating a value. It involves comparing the item being estimated against two known reference points to determine its relative size or value. In this case, the team compared the story to a large (13) and a medium (5) story and estimated it to fall between those two points, ultimately assigning it a story point value of 8. Triangulation allows the team to arrive at a more refined estimation by leveraging existing reference points.

Therefore, the correct technique used by the team in this scenario is C. Triangulation, as they compared the story to two known reference points to determine its relative size and assigned it a story point value based on that comparison.

## Reference

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