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PMI-ACP · Question #20

A common estimation unit for Agile projects is:

The correct answer is C. Story points. Story points are the dominant estimation unit in Agile because they measure relative effort, complexity, and uncertainty rather than calendar time. This abstraction removes the psychological pressure of time-based estimates and accounts for team-specific velocity. Teams use…

Submitted by ravi_2018· Apr 18, 2026Adaptive Planning

Question

A common estimation unit for Agile projects is:

Options

  • ALines of code.
  • BFunction points
  • CStory points.
  • DUse-case points.

How the community answered

(23 responses)
  • A
    4% (1)
  • B
    4% (1)
  • C
    91% (21)

Explanation

Story points are the dominant estimation unit in Agile because they measure relative effort, complexity, and uncertainty rather than calendar time. This abstraction removes the psychological pressure of time-based estimates and accounts for team-specific velocity. Teams use techniques like Planning Poker to assign story points collaboratively. Lines of code, function points, and use-case points are traditional or formal sizing methods not well-suited to Agile's lightweight, iterative planning style.

Topics

#Agile estimation#Story points#Estimation units

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